Firefox Community Forum

Hi! I have been using Firefox for quite some time, and as of yesterday I have encountered a problem. Any site I try to watch video on, be it Twitch, Youtube, etc., the videos now pause every 1-2 seconds to buffer for 4-5 seconds. The progress bar at the bottom of the Youtube videos will say they are loaded well passed the point its stopping to "buffer" at, and this is only occurring on Firefox, I have tested other browsers and am not encountering this issue. Troubleshoot mode also doesn't change anything, and neither does private browsing.

I didn't know I need to keep a device on if I want to sync my old data. I read it thoroughly. This is annoying, I don't want to lose my Sync data from this because I didn't know. How do you guys retain your Sync data if I were to reset my password? My computer just got fixed and I don't like this greeting of where all my data like history and bookmarks flushed down because I wasn't signed-in in a device nor did I place a key or something.

It seems to be related to video playback but not sure. It was happening while a video was playing full screen, and also after stopping playing/hiding a non-full-screen video.

To catch the issue had to screen record at 240fps. I used Nvidia Overlay to record the issue, but was happening before the overlay was even enabled.

Disabled all addons, made no difference. HW acceleration on or off, still happened.

I tried turning on logs, and this always seemed to show up with the flash: ``` 2026-08-09 06:19:44.048000 UTC - [Parent 8388: Main Thread]: D/Widget GetWorkspaceId - calling AsyncUpdateWorkspaceID() 2026-08-09 06:19:44.048000 UTC - [Parent 8388: BackgroundThreadPool #276]: D/Widget calling GetWindowDesktopId 2026-08-09 06:19:44.048000 UTC - [Parent 8388: Main Thread]: D/Widget GetWorkspaceId - calling AsyncUpdateWorkspaceID() 2026-08-09 06:19:44.048000 UTC - [Parent 8388: Main Thread]: D/Widget GetWorkspaceId - calling AsyncUpdateWorkspaceID() 2026-08-09 06:19:44.048000 UTC - [Parent 8388: BackgroundThreadPool #276]: D/Widget called GetWindowDesktopId, hr=00000000 2026-08-09 06:19:44.048000 UTC - [Parent 8388: BackgroundThreadPool #276]: D/Widget calling GetWindowDesktopId 2026-08-09 06:19:44.048000 UTC - [Parent 8388: BackgroundThreadPool #276]: D/Widget called GetWindowDesktopId, hr=00000000 2026-08-09 06:19:44.048000 UTC - [Parent 8388: BackgroundThreadPool #276]: D/Widget calling GetWindowDesktopId 2026-08-09 06:19:44.048000 UTC - [Parent 8388: BackgroundThreadPool #276]: D/Widget called GetWindowDesktopId, hr=00000000 ```

i accepted a free trial for vpn. I do not want to be charged for vpn. i dont find vpn usefull. websites dont allow access when Im using vpn. do not add to my account.

When I use Facebook with my Firefox browser the site just has to many issues. The site keeps hanging up and just sort of stalls out when I try to access messages and notifications that I download from the site. I took the suggestion of clearing my cache. That did nothing. Clearing my history didn't make a difference either. Being this problem doesn't happen with Chrome or Safari, it must be a Firefox problem. So, what more can I do to make using Facebook with Firefox a better experience? Sure would appreciate help.

Whenever I shop online, when I start to input my credit card number at checkout, the last 4 digits of every credit card I've ever used comes up in Autofill. All I have to do is select one, then select its exp date, and it fills in the slots automatically. I find this very convenient, and I trust that it's secure as long as the site itself is. BUT by now, several of the cards that come up have either expired or are no longer in use. HOW DO I DELETE THEM FROM FIREFOX' AUTOFILL LIST? Please help--I've been unable to find the answer to this Q, though I've thoroughly searched. I'm losing patience. I don't want a lot of unused/expired cards on your Autofill. Thank you! [redacted email from community support forum]

Hello if i backup my data on firefox account then i sign into new device then i again login my email and firefox acc then i did not got my passwords or bookmarks and history again. Then what's the use of that backup ? is that offline or online backup if offline then what if i reset my pc and then login back ? if online then there is no option to backup that data. Help me to get back my data.

Firefox popped up an offer to change the screen to dark, which I did. I don't like it, want to change it back. I went to settings but was unable to make the change.

Background: On August 6th morning EST after the August 5 2026 update, attempting to use firefox lead to the window with the "end process" button so I had to close the browser multiple times and then the next time I opened firefox, the bookmarks and history were wiped. I was able to restore using a backup saved on the computer and continue as normal (aside from losing some Cookie Clicker progress, reinstalling Tampermonkey userscripts, and redoing browser extension settings) but now there's an issue with trying to backup firefox data.

Issue: Trying to back up my firefox data leads to a "There was a problem backing up. Try again in a few minutes."

When going to about:config and typing browser.backup.backup-debug-info, I get {"lastBackupAttempt":1786243812,"errorCode":9,"lastRunStep":13}

When looking at Broswer Console, there is an entry saying BackupService: Could not create C:\Users\USERNAME\Documents\Restore Firefox\desktop.ini: NotAllowedError: Could not write to `C:\Users\USERNAME\Documents\Restore Firefox\desktop.ini': failed to open file for writing (NS_ERROR_FILE_ACCESS_DENIED) BackupService.sys.mjs:4116:23 but I don't know how to address that.

Why the h377 did firefox change the screen shot tool by removing it from the address bar AND delete the center search bar, along with changing the location of all my recent web visit from the along the bottom of the screen? This is annoying and unhelpful to pc users, I need these functions back like they were in order to us your site on my pc. I donot and will never use firefox on my phone. If these functions are gone, then I will have leave as well. Either that or remove the update from my pc and cease ALL further updates.

Using the Firefox browser, I tried to copy an image and wasn't able to do so. Then I copied an image using another browser and wasn't able to paste it into a Facebook post on Firefox. Please tell me how to fix this. I can't copy/paste text either. Could the problem be my Mozilla VPN?

Hello, i recently upgraded from a 4k monitor to a dual 4k ultrawide monitor, and have been having visual issues specifically on firefox and no other applications. when firefox is out of focus and i have a different window selected, the text in the firefox window becomes blurry

My Windows 11 PC crashed but i was able to recover copy of my firefox profile. I copied previous profile folders and i am able to access those profiles using firefox.exe -P command.

But profiles don't show up in the new profile switcher. How can i restore them to modern way profiles work.

i don't want to setup accounts and sync for my profiles.

I have my settings set to open PDF files in Adobe Acrobat, but the latest version of Firefox has started opening them in their own viewer, which is NOT near as useful, and I then have to download it to open in Acrobat like I used to do. Why? Is there any way to fix it back?

i have checked my mouse settings and reset everything but no change,,this started after a windows update, so i went in and uninstalled the update but did not fix the problem..i don't know how better to explain it, the scroll just stopped working while trying to scroll web pages,when i try to scroll the page doesn't move ., if i move my pointer over to the right side where the indicator of where you have scrolled to is and i click under it to scroll down and sometimes it kindof goes crazy and scrolls through many,many pages instantly...i hope all this some sense to you computer gurus cause i have tried everything that i know...thanks for giving it a shot..i use firefox browser and windows 11