Showing questions tagged:

cannot get to claude.ai

normally i just click the forefox icon on my taskbar and type claude.ai in the address field but today i was messaged that the claude program needed a mozila account - so… (read more)

normally i just click the forefox icon on my taskbar and type claude.ai in the address field but today i was messaged that the claude program needed a mozila account - so I had to set one up. why and still cannot get to Claude

Solved 1 3 407

Shortcut on home screen will not remove

When I long press shortcut and choose remove, it does not remove. Some will others won’t. I don’t think it is a sponser shortcut because I think I originally put it there… (read more)

When I long press shortcut and choose remove, it does not remove. Some will others won’t. I don’t think it is a sponser shortcut because I think I originally put it there.

Solved 5 1 50

Cannot access or enable webgl

Webgl has completly broken after last update for me. Forcing webgl in about config doesnt work and it doesnt work in troubleshoot mode either. Anything else i can try apa… (read more)

Webgl has completly broken after last update for me. Forcing webgl in about config doesnt work and it doesnt work in troubleshoot mode either. Anything else i can try apart from reinstall from scratch as im worried about losing my history,saved account info and such. Or do i just need to do a full refresh and install? Thank you!

Solved 2 1 60

DNS over HTTPS at Max Protection Prevents Websites From Loading

When I opened up Firefox this evening, websites stopped working if "DNS over HTTPS" is set to "Max Protection". In some instances, such as YouTube, the website loads, but… (read more)

When I opened up Firefox this evening, websites stopped working if "DNS over HTTPS" is set to "Max Protection". In some instances, such as YouTube, the website loads, but it acts like you're offline and tells me to turn on my Wi-Fi even though it's already on and running fine. Weirdly, it seems that setting DNS over HTTPS to Max Protection, loading a website, set DNS over HTTPS to a lower setting, and then reloading the website fixes the issue, but it'd still be nice if we didn't have to go through the hassle at all. Thank you for your time and patience.

Sincerely, Watching Forests

Solved 2 1 130

Intermittent HTTP/2 connection stalls in Firefox while Chromium browsers work normally

I’ve been troubleshooting a strange networking issue in Firefox that I haven’t been able to pin down, and it seems to be specific to Firefox’s network stack rather than m… (read more)

I’ve been troubleshooting a strange networking issue in Firefox that I haven’t been able to pin down, and it seems to be specific to Firefox’s network stack rather than my system or connection.

On several high-traffic sites that sit behind Cloudflare (Discord, Shopify storefronts, some SaaS dashboards), Firefox occasionally stalls during page load. The request shows up in the Network panel as pending for several seconds before finally completing. Sometimes the page partially renders and then hangs until the stalled requests finish.

A few things that make this confusing:

• The same sites load instantly in Chromium-based browsers on the same machine and network • The issue persists even in Firefox Troubleshoot Mode with extensions disabled • DNS over HTTPS on/off does not appear to change behavior • Packet captures show the TCP connection is established quickly, but some HTTP/2 streams appear to wait before data begins flowing • If I force HTTP/1.1 using a proxy for testing, the issue disappears

System details:

OS: Windows 11 Firefox: latest stable release Connection: fiber, low latency, no packet loss locally No system proxy configured

Things I’ve already tried:

• Clearing cache and site data • New Firefox profile • Disabling hardware acceleration • Testing with network.http.http2.enabled toggled • Comparing HAR logs with Chromium

One thing I noticed in the Firefox networking logs is that multiplexed streams sometimes wait behind earlier streams longer than expected, almost like there’s some internal prioritization or queue behavior happening. I’m wondering whether this could be related to HTTP/2 prioritization logic, connection coalescing, or how Firefox handles Cloudflare edge endpoints.

Has anyone seen similar behavior or knows whether there are any advanced networking prefs in about:config worth experimenting with (connection limits, HTTP/2 concurrency, etc.)?

Curious if this might be a known quirk with certain CDNs or just something unique to my environment.

Solved 1 1 150

Firefox desktop logins not syncing to Android

Firefox desktop saved logins not appearing on android. Sync enabled on both devices yesterday. Previously worked fine, kinda frustrating having to manually re enter every… (read more)

Firefox desktop saved logins not appearing on android. Sync enabled on both devices yesterday. Previously worked fine, kinda frustrating having to manually re enter everything.

Open 1 1 30

Camera permissions not working for websites in Firefox Android

Hello, I am trying to access the camera on a website (Unstop Quizverse) using Firefox on my Android device, but the camera is not turning on / detected properly. I have c… (read more)

Hello, I am trying to access the camera on a website (Unstop Quizverse) using Firefox on my Android device, but the camera is not turning on / detected properly. I have checked the site permissions, but the camera prompt is still not working. Could you please guide me on how to enable/fix camera access permissions for websites in Firefox Mobile? Thank you!

Open 6 1

How to block McAfee pop-ups on firefox

I bought a new hp notepad and McAfee keeps popping up. I followed the instructions on internet to no avail. Please help my new notebook is useless to me with mcfee popups… (read more)

I bought a new hp notepad and McAfee keeps popping up. I followed the instructions on internet to no avail. Please help my new notebook is useless to me with mcfee popups

Solved 4 1 80

Firefox keeps randomly moving focused tabs to the end

When I go to view an already open tab it will sometimes randomly move it to the very end of my tabs all the way to the right. I don't want it to move tabs without my inte… (read more)

When I go to view an already open tab it will sometimes randomly move it to the very end of my tabs all the way to the right. I don't want it to move tabs without my intervention. Clicking on a tab should keep it in place.

This has been an issue for about 2 months now. I'm not sure what's causing it or even if it's entirely a Firefox issue as I have noticed something similar happen in another program with tabs that I use often. It still seems like a Firefox issue in that moving a tab all the way to the end is a very specific task that can't normally be done accidentally.

Is there a way to prevent this from happening or has anyone figured it out?

This person has the same issue: https://connect.mozilla.org/t5/discussions/stop-reordering-my-tabs/td-p/93219

Archived 4 260