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On YouTube tabs, if Firefox memory usage starts climb (ie. more than 3-4 tabs active), there are janks for a few seconds preventing me from interacting with the YouTube tab. This jank does not happen with other tabs (can even interact normally with other tabs while the YT tab is janking). Attached is a profiler report.

https://share.firefox.dev/41OGyga

When I pull upwards on the bottom of my screen to scroll between/close apps while in landscape mode (such as watching a video or playing an app), if Firefox is open it will show me a preview of a video that I watched a while ago (and in a private browser, as I do most of my internet usage in the private browser). Why is it doing this? I've since watched other videos, and yet it still shows the preview of a video from several weeks, if not months ago. I'd like it to not do this. It's a bit annoying seeing this glitch (or occurrence, however it may be categorized) so often when I'm long since watched other things. It's only occurring when in landscape mode as well.

Hi Mozilla friends,

I'm running OSX 10.9.5 and I just can't afford to buy another computer right now, all the more that my iMac works beautifully. I tried and cannot install the current Firefox. What am I to do? Many thanks, - Greg

I have just installed Firefox on a new iMac, running MacOS 15.2. Firefox will not load any of the websites I have tried, whereas Safari and Chrome do. I have cleared the History and also set "No proxy" but loading still fails.

Every so often for the past few days this "unfinished" program window has appeared on my pc on top of a normal Firefox window (see attached png). Does this have something to do with Firefox? I think the same thing appears when I first open Firefox, then it gets "filled in" and appears as a normal Firefox window. I am running Firefox 133.0.3 (64-bit) on Windows 10 Pro Version 22H2 build 19045.5247 Windows Feature Experience Pack 1000.19060.1000.0.

Hello. Today suddenly sound stopped working on Youtube and tried changing volume as well made sure there is no muting. I tried opening videos on Youtube via Chrome and sound was working fine. How to fix this issue on Firefox?

Hey,

I am running a new Mac and when I am composing an email and click attachments, the Mac finder (file system) window pops up, but all options are greyed out for 5-10 seconds before I can navigate. This is not the case in the native one if I open it normally outside of Thunderbird.

I have reinstalled and tried all the normal steps, and the issue is still persisting.

I would appreciate any help or having this escalated to the team.

Thanks!

https://www.instagram.com/reel/C-nl6X1tBXy/?utm_source=ig_embed&utm_campaign=loading

Probably after the last update I am not able to simply do "Folder Maintenace" by File > Do Folder Mainenace. After doing this the process gives an error message:

"You cannot maintain the "Recycle Bin in xxx@xxx.net" folder because you cannot write to the folder. Check that you have enough disk space and write permissions to the folder and repeat the action.

This started to happen simultaneously on all my devices (two PCs, one notebook), all with updated Windows 11 and with last version of Thunderbird (128.5.2esr (64 bit) and also both in my personal and working mail domains. All of them are IMAP.

If I try to maintain only the trash bin separately, it takes a long time and finishes without any error message. But trying after that the complete maintain again fails.

I tried to delete trash files from the account profile on the disc and then it work. But only until I deleted any message. Then the problem ocurred again.

I am not sure whether I am doing good or bad to maintain folders regularly, but it was okay and without problems yet around month ago, not now.

Thank you, Michal

Issue 1: As with vimium(https://chromewebstore.google.com/detail/vimium/dbepggeogbaibhgnhhndojpepiihcmeb?hl=en&pli=1) extension we can press J or K to more left or right, or in Zen browser's case, up and down. But vimium has limitation as it doesn't run on Zen's native web points like settings homepage etc. Please add a shortcut for navigation between tabs other than alt 1-9. Where we can just change adjacent tabs.

Issue 2: Also on full screen the bookmark bar it impossible to access with shortcut or without it just vanishes

Issue3: The browser close minimize icon are just useless on full screen I3WM or HyprLand like windows manager as we never need to do those things.

Issues are arranged in their priority order, as the top one needs the most focus from the devs.