Firefox Community Forum

I've noticed that HDR content on YouTube plays at apparently maximum brightness, which is overwhelming. The same video using Google Chrome behaves as expected. For example:

https://www.youtube.com/watch?v=Xod2xiLA9CM

I'm running FF v135.0 and Chrome v133.0.6943.54. When using Chrome, the video brightness matches system brightness settings on my Macbook Pro (running Sequoia 15.3) but when I use FF, the video itself is incredibly bright, as if the white levels have been maxed out. It seems to be a problem with handling the HDR content. Even stranger, it's as if the browser is able to increase my screen brightness itself, but only in the video pane. I doubt that's actually happening, but that's what appears to happen. If I switch to another tab and then back to the video, it takes a few seconds for the video pane to increase extreme levels.

Also, I tried to take a screenshot of it but the screenshot doesn't show the extreme bright levels that I see when I'm using the browser.

I'm very frustrated with FF. It's running slow. Downloads are slow etc. I've tried everything that FF has recommended up to and including "refresh" with no effect. It's getting to the point I'm considering not using FF. Does anybody have any suggestions?

Firefox will not longer close without also closing my pinned tabs which pretty much defeats the purpose of pinning tabs for later and makes it much harder to keep track of things. I didn't notice the first time and lost my pinned tabs that had been there for months, I immediately put them back but now everytime I try exiting firefox it informs me i'm about to close however many tabs are open + the pinned tabs. Does anyone know how to solve the problem/what might be causing it.

On my windows PC, I am unable to view Ring Camera live-view due to "error missing required codec". Does my Firefox have the required HEVC codec to view Ring Camera videos?

Hallo, "hr Konto und Ihre persönlichen Daten werden am Samstag, 26. Apr. 2025 dauerhaft gelöscht, da Sie nicht aktiv waren. Melden Sie sich an, um Ihr Konto zu behalten Wenn Ihr Konto gelöscht wird, erhalten Sie weiterhin E-Mails von der Mozilla Corporation und der Mozilla Foundation, " diese email habe ich heute erhalten, Absender ist: mozilla accounts@firefox.com da ich seit Jahren problemlos Thunderbird und Firefox verwende, glaube ich, dass es sich um fake handelt. Ist dies richtig? Freundliche Grüße Fischer

If I go on any website using OSM data (including OpenStreetMap itself) on Firefox logged into my account, I experience a lot of slowdown. This doesn't happen when I use incognito mode or when I use another browser, so I'm pretty sure there's some kind of cache or something that's connected to my Mozilla account that slows down OSM massively. I've tried clearing all cache and all cookies. I've even refreshed Firefox using the installer and it's still slow. I don't want to bother with deleting my account and creating a new one. What should I do to try and return back to normalcy on OSM?

Dear Mozilla,

Have a copy of Firefox portable, that I use on a USB stick. Before Firefox 140, it updated properly. Now, I find that it keeps staying on version 135, even though it keeps telling me it has updated to the latest version. Puzzled by this. Can you please advise me on this problem?

Marek Wesolowski

Due mostly to upgrades in the app software, it's necessary to restart Firefox on occasion. Also, it's necessary due to OS upgrades. While the Restore Previous Session is a wonderful feature, it arbitrarily (and properly, by default) forgets all of the Private Tabs. But, there are times when I'd like to save some or all of the Private Tabs I've got open. A 'settable' feature to 'Remember Private Tabs during Restart' would be a tremendous asset at times.

I can see no way to download passwords or bookmarks on my android phone, so I can email them to myself, open on my PC and add them to PC Firefox. I have signed in to the same account on both devices, and turned sync on on both devices. I receive no passwords or bookmarks on the PC. I had to re-install Windows 11, and now I cant get my passwords or bookmarks onto my PC.

Cannot take screenshot of passwords on android - screenshot is blank.

Firefox crashes every day or so on my home computer. The most common error message is "kmode exception not handled." I've tried the suggested fixes. Nothing helps. The crashes are not being recorded in "about crashes" or in %APPDATA%\Mozilla\Firefox\Crash Reports\. So it seems the crash reporter has to be fixed before the problem causing the crashes can be identified. Firefox does not crash on my office computer and no other program causes my home computer to crash. Thank you.

Samsung Frame 85" 2023 with GTX 1050Ti GPU, HP G4 SFF, i5-8500, Win 11 Pro 26100.3194

TV signal, and audio cuts out (black screen) when using mouse arrow to drag scroll in side bar. Also gives a loud audible "click" as sound is temporarily cut out. ( Most probably whole HDMI signal is cut)

Black screen bug happens randomly with You tube with no mouse or keyboard action, but 100% repeatable with this website when scrolling :

https://www.worldometers.info/gdp/gdp-by-country/

Please advise how to fix

Firefox crashes randomly during video playback. I've submitted over 10 crash reports. Here's the two latest crash report (which includes my device's hardware information): https://crash-stats.mozilla.org/report/index/81eb1750-1dd0-490d-9eb1-d3c2c0250224 https://crash-stats.mozilla.org/report/index/6682a7f2-836a-4365-938e-c9ab20250224

I'm on Fedora 41 + gnome, but this issue persisted even in Windows 11, which caused BSOD therefore I made the switch to linux (At least in linux it doesn't crash the whole system, only firefox). If you need any additional information let me know. I can run journalctl/dmesg if required.

I've already tried things like restarting in safe mode (troubleshoot mode), refreshing firefox etc. Didn't work.

Thanks in advance!

Every time I start Firefox after closing it, I get a screen saying "Your Firefox has been updated" plus an announcement about editing PDFs in Firefox. My degault home screen does not appear unless I click the "home" icon. This is frustrating, because the update message just won't go away.

The URL for that irritating message is: https://www.mozilla.org/en-US/firefox/135.0/whatsnew/?oldversion=134.0.2&utm_medium=firefox-desktop&utm_source=update&utm_campaign=135

I've attached a screenshot to show this, hoping you can suggest a way to fix the issue.

Hello, I have some issues with Firefox keeping my logged in my Google account. When I close Firefox it logs me out of Google. I have tried some methods from other threads on this site but still without success. I have the setting for delete cookies on Firefox close to off and have tried Firefox remember history and use custom settings. Thank you for reading this.