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AAKL<p>CISA's updated advisory: UPDATE: Microsoft Releases Guidance on Exploitation of SharePoint Vulnerabilities <a href="https://www.cisa.gov/news-events/alerts/2025/07/20/update-microsoft-releases-guidance-exploitation-sharepoint-vulnerabilities" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cisa.gov/news-events/alerts/20</span><span class="invisible">25/07/20/update-microsoft-releases-guidance-exploitation-sharepoint-vulnerabilities</span></a></p><p>Additions to the KEV catalogue:</p><p>- CVE-2025-49706: Microsoft SharePoint Improper Authentication Vulnerability <a href="https://www.cve.org/CVERecord?id=CVE-2025-49706" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cve.org/CVERecord?id=CVE-2025-</span><span class="invisible">49706</span></a> </p><p>- CVE-2025-49704: Microsoft SharePoint Code Injection Vulnerability <a href="https://www.cve.org/CVERecord?id=CVE-2025-49704" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cve.org/CVERecord?id=CVE-2025-</span><span class="invisible">49704</span></a></p><p>- CVE-2025-54309: CrushFTP Unprotected Alternate Channel Vulnerability <a href="https://www.cve.org/CVERecord?id=CVE-2025-54309" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cve.org/CVERecord?id=CVE-2025-</span><span class="invisible">54309</span></a></p><p>- CVE-2025-6558: Google Chromium ANGLE and GPU Improper Input Validation Vulnerability <a href="https://www.cve.org/CVERecord?id=CVE-2025-6558" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cve.org/CVERecord?id=CVE-2025-</span><span class="invisible">6558</span></a> </p><p>- CVE-2025-2776: SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability <a href="https://www.cve.org/CVERecord?id=CVE-2025-2776" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cve.org/CVERecord?id=CVE-2025-</span><span class="invisible">2776</span></a> </p><p>- CVE-2025-2775: SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability <a href="https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=&amp;field_date_added_wrapper=all&amp;sort_by=field_date_added&amp;items_per_page=20" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cisa.gov/known-exploited-vulne</span><span class="invisible">rabilities-catalog?search_api_fulltext=&amp;field_date_added_wrapper=all&amp;sort_by=field_date_added&amp;items_per_page=20</span></a> <a href="https://infosec.exchange/tags/CISA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CISA</span></a> <a href="https://infosec.exchange/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cybersecurity</span></a> <a href="https://infosec.exchange/tags/infosec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>infosec</span></a> <a href="https://infosec.exchange/tags/Microsoft" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Microsoft</span></a> <a href="https://infosec.exchange/tags/Google" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Google</span></a> <a href="https://infosec.exchange/tags/SharePoint" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SharePoint</span></a> <a href="https://infosec.exchange/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> <a href="https://infosec.exchange/tags/CrushFTP" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CrushFTP</span></a> <a href="https://infosec.exchange/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cybersecurity</span></a> <a href="https://infosec.exchange/tags/Infosec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Infosec</span></a></p>
Stewart X Addison<p>I've been using the "Ungoogled Chromium" flatpak on my <a href="https://fosstodon.org/tags/Fedora" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Fedora</span></a> system but I'm getting these messages from the system several times a day. I'm not sure exactly what process is falling since it's never affected the browser in any obvious way. Anyone else seen this? <a href="https://fosstodon.org/tags/chrome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>chrome</span></a> <a href="https://fosstodon.org/tags/chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>chromium</span></a></p>
Funky Bob<p>So <a href="https://chaos.social/tags/chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>chromium</span></a> mandates accessing a Google API when you use geolocation, even if you have sensor spoofing on in the dev tools.</p><p>And because Google, all I get is:</p><p>Network location provider at '<a href="https://www.googleapis.com/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">googleapis.com/</span><span class="invisible"></span></a>' : Returned error code 429.</p><p>Oh, did I mention there's no way to change or disable this URL, despite what the code says? (it refers to a setting that doesn't exist)</p>
Klaus Frank<p>Anyone know if <a href="https://chaos.social/tags/chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>chromium</span></a> has some comandline parameter or flag to make it fail to start instead of clear all of the secrets when the secret provider fails or better times out (as in I took too long to enter the password for unlocking it)?</p><p>Kinda annoying to loose all of the sessions because of this...</p>
Linuxiac<p>Chromium adds Wayland color-management-v1 support, allowing HDR rendering on supported platforms with a default-enabled feature flag.<br><a href="https://linuxiac.com/hdr-video-playback-lands-in-chromium-on-wayland/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">linuxiac.com/hdr-video-playbac</span><span class="invisible">k-lands-in-chromium-on-wayland/</span></a></p><p><a href="https://mastodon.social/tags/chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>chromium</span></a> <a href="https://mastodon.social/tags/wayland" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>wayland</span></a> <a href="https://mastodon.social/tags/hdr" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hdr</span></a> <a href="https://mastodon.social/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linux</span></a></p>
Marcel SIneM(S)US<p><a href="https://social.tchncs.de/tags/Chrome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chrome</span></a>: <a href="https://social.tchncs.de/tags/Google" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Google</span></a> :google: unterstützt diese <a href="https://social.tchncs.de/tags/macOS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>macOS</span></a>-Version bald nicht mehr | Mac &amp; i <a href="https://www.heise.de/news/Chrome-Google-unterstuetzt-diese-macOS-Version-bald-nicht-mehr-10490384.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">heise.de/news/Chrome-Google-un</span><span class="invisible">terstuetzt-diese-macOS-Version-bald-nicht-mehr-10490384.html</span></a> <a href="https://social.tchncs.de/tags/GoogleChrome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GoogleChrome</span></a> <a href="https://social.tchncs.de/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> <a href="https://social.tchncs.de/tags/ChromeBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChromeBrowser</span></a> <a href="https://social.tchncs.de/tags/Browser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Browser</span></a> <a href="https://social.tchncs.de/tags/Webbrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Webbrowser</span></a></p>
Oto Šťáva<p>The situation with picking default applications for file types on <a href="https://mastodon.social/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linux</span></a> is a real PITA. Why is my <a href="https://mastodon.social/tags/aerc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>aerc</span></a> suddenly opening <a href="https://mastodon.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> for PDF attachments instead of <a href="https://mastodon.social/tags/Zathura" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Zathura</span></a> configured in my mimeapps, ffs? xdg-mime says the default is Zathura, so wtf is going on?</p>
Serf de Web<p><span class="h-card" translate="no"><a href="https://infosec.exchange/@briankrebs" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>briankrebs</span></a></span> At this point, is chromium safer out of the box than Firefox, or do I need to jump through hoops to lock it down as well?</p><p>I am on Linux, BTW.</p><p>Thanks for your reply.</p><p><a href="https://mastodon.world/tags/Firefox" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Firefox</span></a> <a href="https://mastodon.world/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> <a href="https://mastodon.world/tags/Infosec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Infosec</span></a></p><p>2/2</p>
Neustradamus :xmpp: :linux:<p><a href="https://mastodon.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> 140.0.7304.0 has been released (<a href="https://mastodon.social/tags/Web" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Web</span></a> / <a href="https://mastodon.social/tags/WebBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WebBrowser</span></a> / <a href="https://mastodon.social/tags/Browser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Browser</span></a> / <a href="https://mastodon.social/tags/Google" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Google</span></a>) <a href="https://chromium.org/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">chromium.org/</span><span class="invisible"></span></a></p>
Neustradamus :xmpp: :linux:<p><a href="https://mastodon.social/tags/UngoogledChromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UngoogledChromium</span></a> 138.0.7204.100-1.1 has been released (<a href="https://mastodon.social/tags/Ungoogled" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Ungoogled</span></a> / <a href="https://mastodon.social/tags/Web" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Web</span></a> / <a href="https://mastodon.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> / <a href="https://mastodon.social/tags/WebBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WebBrowser</span></a> / <a href="https://mastodon.social/tags/Browser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Browser</span></a>) <a href="https://ungoogled-software.github.io/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">ungoogled-software.github.io/</span><span class="invisible"></span></a></p>
Neustradamus :xmpp: :linux:<p><a href="https://mastodon.social/tags/BraveBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BraveBrowser</span></a> 1.80.122 (138.0.7204.157) has been released (<a href="https://mastodon.social/tags/Brave" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Brave</span></a> / <a href="https://mastodon.social/tags/Web" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Web</span></a> / <a href="https://mastodon.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> / <a href="https://mastodon.social/tags/WebBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WebBrowser</span></a> / <a href="https://mastodon.social/tags/Browser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Browser</span></a>) <a href="https://chromium.org/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">chromium.org/</span><span class="invisible"></span></a></p>
Neustradamus :xmpp: :linux:<p><a href="https://mastodon.social/tags/OperaBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OperaBrowser</span></a> 120.0.5543.93 has been released (<a href="https://mastodon.social/tags/Opera" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Opera</span></a> / <a href="https://mastodon.social/tags/OperaChromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OperaChromium</span></a> / <a href="https://mastodon.social/tags/Web" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Web</span></a> / <a href="https://mastodon.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> / <a href="https://mastodon.social/tags/WebBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WebBrowser</span></a> / <a href="https://mastodon.social/tags/Browser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Browser</span></a>) <a href="https://opera.com/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">opera.com/</span><span class="invisible"></span></a></p>
Neustradamus :xmpp: :linux:<p><a href="https://mastodon.social/tags/VivaldiBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>VivaldiBrowser</span></a> 7.5.3735 has been released (<a href="https://mastodon.social/tags/Vivaldi" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Vivaldi</span></a> / <a href="https://mastodon.social/tags/Opera" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Opera</span></a> / <a href="https://mastodon.social/tags/OperaBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OperaBrowser</span></a> / <a href="https://mastodon.social/tags/Web" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Web</span></a> / <a href="https://mastodon.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> / <a href="https://mastodon.social/tags/WebBrowser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WebBrowser</span></a> / <a href="https://mastodon.social/tags/Browser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Browser</span></a>) <a href="https://vivaldi.com/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">vivaldi.com/</span><span class="invisible"></span></a></p>
CrisAlvarado<p>🧠 Today I found out <a href="https://mastodon.social/tags/Microsoft" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Microsoft</span></a> <a href="https://mastodon.social/tags/Edge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Edge</span></a> is built on <a href="https://mastodon.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a>, which means I can use my Chrome extensions—even the ones I don’t really love 😅. While watching a long interview with Sam Altman, I tested Edge’s summary feature: <a href="https://mastodon.social/tags/Copilot" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Copilot</span></a> popped up and gave me a great recap right in the browser. Later, a <a href="https://mastodon.social/tags/WordPress" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WordPress</span></a> error surprised me while working on a client site, so I opened Copilot in Edge—and it instantly gave me the solution. This integration is genuinely transforming how I work. 🚀</p>
AAKL<p>Microsoft listed three vulnerabilities yesterday, all affecting Chromium-based Edge. </p><p>Microsoft security guide: </p><p>- Chromium: CVE-2025-7657 Use after free in WebRTC <a href="https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-7657" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">msrc.microsoft.com/update-guid</span><span class="invisible">e/vulnerability/CVE-2025-7657</span></a></p><p>- Chromium: CVE-2025-7656 Integer overflow in V8 <a href="https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-7656" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">msrc.microsoft.com/update-guid</span><span class="invisible">e/vulnerability/CVE-2025-7656</span></a></p><p>- Chromium: CVE-2025-6558 Incorrect validation of untrusted input in ANGLE and GPU <a href="https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-6558" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">msrc.microsoft.com/update-guid</span><span class="invisible">e/vulnerability/CVE-2025-6558</span></a> <a href="https://infosec.exchange/tags/Microsoft" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Microsoft</span></a> <a href="https://infosec.exchange/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> <a href="https://infosec.exchange/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cybersecurity</span></a> <a href="https://infosec.exchange/tags/infosec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>infosec</span></a></p>
Prof. Dr. Dennis-Kenji Kipker<p>Better be fast: Alle <a href="https://chaos.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a>-basierten <a href="https://chaos.social/tags/Browser" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Browser</span></a> leiden zurzeit (soweit noch nicht gepatcht) an einer kritischen und bereits aktiv ausgenutzten <a href="https://chaos.social/tags/Sicherheitsl%C3%BCcke" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Sicherheitslücke</span></a>, die den Ausbruch aus der Sandbox ermöglicht. Dadurch kann theoretisch Schadcode auf dem Zielsystem zur Ausführung gebracht werden.</p><p>Betroffen sind neben Chrome auch Microsoft <a href="https://chaos.social/tags/Edge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Edge</span></a>, Vivaldi und Brave - Updates sind in Teilen bereits verfügbar und sollten möglichst rasch eingespielt werden:</p><p><a href="https://www.golem.de/news/google-warnt-zero-day-luecke-in-chrome-laesst-hacker-aus-sandbox-ausbrechen-2507-198152.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">golem.de/news/google-warnt-zer</span><span class="invisible">o-day-luecke-in-chrome-laesst-hacker-aus-sandbox-ausbrechen-2507-198152.html</span></a> <a href="https://chaos.social/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cybersecurity</span></a></p>
AskUbuntu<p>Is it possible to force GNOME Remote Login RDP sessions to use X11 instead of Wayland on Ubuntu 24.04? <a href="https://ubuntu.social/tags/gnome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gnome</span></a> <a href="https://ubuntu.social/tags/xorg" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>xorg</span></a> <a href="https://ubuntu.social/tags/chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>chromium</span></a> <a href="https://ubuntu.social/tags/remotedesktop" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>remotedesktop</span></a></p><p><a href="https://askubuntu.com/q/1553025/612" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">askubuntu.com/q/1553025/612</span><span class="invisible"></span></a></p>
层叠 - The Cascading<p><span>Chrome 139 即将到来:ManifestV2 支持将被完全移除。<br><br>需要 ManifestV2 插件的订户可以选择 Firefox 或 Brave 等替代浏览器*。<br><br></span><a href="https://developer.chrome.com/docs/extensions/develop/migrate/mv2-deprecation-timeline" rel="nofollow noopener" target="_blank">developer.chrome.com/~</a><span><br><br>thread: </span><a href="https://t.me/outvivid/3955" rel="nofollow noopener" target="_blank">/3955</a><span><br><br>* 不代表本台对这些浏览器的推荐或背书。<br><br></span><a href="https://misskey.io/tags/Chromium" rel="nofollow noopener" target="_blank">#Chromium</a> <a href="https://misskey.io/tags/ManifestV3" rel="nofollow noopener" target="_blank">#ManifestV3</a><span><br><br></span><a href="https://t.me/outvivid/4734" rel="nofollow noopener" target="_blank">Telegram 原文</a></p>
Geheimorganisation<p>wie ein großer lyriker unser zeit, haftbefehl, schon sang: "CVEs fallen wie blätter im herbst, es ist … hass … schmerz" <a href="https://chaos.social/tags/matrix" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>matrix</span></a> <a href="https://chaos.social/tags/chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>chromium</span></a> <a href="https://chaos.social/tags/libxml2" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>libxml2</span></a> <a href="https://chaos.social/tags/nodejs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nodejs</span></a></p>
data0<p><a href="https://indieweb.social/tags/TIL" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TIL</span></a>: There are two ways to trigger use of the <a href="https://indieweb.social/tags/HTTP3" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HTTP3</span></a> / <a href="https://indieweb.social/tags/QUIC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>QUIC</span></a> <a href="https://indieweb.social/tags/protocol" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>protocol</span></a> in <a href="https://indieweb.social/tags/webbrowsers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>webbrowsers</span></a>: </p><p><a href="https://indieweb.social/tags/Chromium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chromium</span></a> and <a href="https://indieweb.social/tags/Firefox" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Firefox</span></a> <a href="https://indieweb.social/tags/browsers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>browsers</span></a> always start with <a href="https://indieweb.social/tags/HTTP1" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HTTP1</span></a> / <a href="https://indieweb.social/tags/HTTP2" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HTTP2</span></a>, look for the “alt-svc” header in the response and switch to HTTP3 for subsequent requests if they find it. I knew that much.</p><p>But <a href="https://indieweb.social/tags/Safari" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Safari</span></a> will instead query <a href="https://indieweb.social/tags/DNS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DNS</span></a> for the "<a href="https://indieweb.social/tags/HTTPS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HTTPS</span></a>" record and use that as a trigger. So it can work HTTP3-only for the cost of an additional DNS query. Unfortunately, the record type isn't widely supported yet.</p>