Firefox Community Forum

Two days ago I closed FF and went to bed. I opened it the next morning and lost about 20 tabs. Ever since then, every time I restart FF, I lose all tabs except for one default tab.

TLDR: 1. "restore previous session" is not available. 2. Toggling Settings/Home and Startup does nothing. 3. Update? My FF automatically updates. 4. "about:sessionrestore" finds nothing,

1. FF help said I could go into History and click "Restore Previous Session" but that option doesn't exist. All I can do is look at History and see lists for today, yesterday, last 7 days etc.

2. Another advisory suggested Settings, Home and Startup, select "Open previous windows and tabs". but it was already selected. So I switched it off, restarted FF and then switched it back on. I still lose all tabs every time I restart FF.

3. Another advisory suggested, checking for updates. My FF automatically updates.

4. I tried "about:sessionrestore" It returns with the heading: "Sorry. We’re having trouble getting your pages back." Restore session is greyed out and "View previous tabs" produces an empty list. I've tried it a few times now, identical result.

Thanks for any help. Cheers, Andrew

Just started happening a few days ago. On Lifepoints (lifepointspanel.com) , surveys used to be accessible for one to do. Starting a few days ago , that changed and all now come back with "Try a different survey". No changes on my end. Support at the site indicates it is a browser issue. Any clues? Been using FF all along and it is up to date.

Since Firefox 157, each version is stealing more and more RAM. Why? My Windows XI, on HP with an AMD processor, are constantly losing more and RAM to Firefox. Is there any advice? Or must I suspend all updates?

Hello,

For some inexplicable reason, when I visit any Wikipedia page (as of Thursday 8th October 2026), the pages display with a huge oversized font that also impacts the format and layout of the page in my browser. I have not made any adjustments on my PC to increase font display size. Wikipedia is the ONLY website that displays in this manner.

I am running Firefox 115.42.0esr (64-bit), which appears to indicate Firefox is up-to-date on my Windows 8.1 desktop PC. Please note that I am still running Windows 8.1 on this device out of choice.

I reported the fault initially to Wikipedia itself, and the response is that any fault is at my end. I have visited the same Wikipedia pages via Chrome Version 109.0.5414.168 (Official Build) (64-bit) and the pages display normally.

I have attached a sample screenshot to illustrate.

Any ideas how I can resolve this issue please?

Many thanks - Dean

I'm having an issue where when you try to do things in-browser, Firefox freezes, puts up a grey screen and holds this way for a few seconds. Scrolling and video seem to trigger it most often. Repeatability is nominal; sometimes I have no problem, sometimes every action I try to take results in another fit of grey screens and freezing.

I'm using version 153.0.3 64bit on Windows 10.

I updated today because of the CA issue but this version of Firefox seems not to be able to save PDF files. This might be a bug.

What I did to try to resolve:

1. Tested saving PDFs from different websites: no PDFs were saved. All failed silently (Save as PDF dialog closes as normal after I select the destination for the file. No file is produced, no error message is shown.)

2. Checked to see if a different application could save PDFs today on my computer. No problem. It's just Firefox.

3. Restarted Firefox: same problem

4. Restarted my Mac (mini m4, Sequoia 15.8.1): same problem

Note: Printing on paper from Firefox still works.

Ok this latest UI appearance change is absolute dog feces. I hate it so much! It's so ugly! How do I change it back? I did not consent for my eyeballs to be assaulted like this. Did I mention it sucks? How do I change it back? 157.0.0.11

I make extensive use of AUTOFILL for things like credit cards (on a computer only I can access).

It worked fine for me for years. Within the past 2-3 updates it ceased to function.

The information is still saved - when I click on the entry box, the dropdown appears. Using the down arrow shows the entries, but pressing ENTER has no effect. The box(es) to be autofilled remain blank.

I tried all of the online help suggestions. There is a lot of information on DISABLING autofill, but not much on re-enabling it.

TIA

Hi

Since I updated Firefox my Twitch and Kick websites wont load the video. The chat work but video and sound wont start.

I tried it in chrome and there it works so something happend after the new update.

Google Sheets and Docs are not loading properly. They show their content while loading, and then go all black. I have attached an image. I added a link to the video, not sure if discord cdn will work though for embeds here.

The data is still there, just not visible.

I did see that older, similar issues were fixed with light mode, so I tried that. Same issue, but instead of going all black, it goes all white. Turning off extensions has not fixed this either. This has only been happening since the last firefox update; unsure if causal or coincidental. It also happens only on google services except drive itself.

I had a problem where FF 140.0 would not update, and in trying to get FF yo update, I used a re-install tool to which I was pointed in my problem report. This caused FF to wipe out my configuration, and I lost all my windows and tabs. I have gone to

    \Appdata\Roaming\Mozilla\Firefox\Proifiles\abnfpged.default

cleared all of the data therein, and restored that directory from a backup I made last Monday. But I cannot get FF to use that directory. "about:profiles" shows only two profiles, but the Profiles directory has five profiles:

03/10/2026 09:39 AM <DIR> qf00ka5x.default 03/10/2026 09:39 AM <DIR> v842ceue.default-release 04/11/2026 09:16 PM <DIR> .. 04/11/2026 09:16 PM <DIR> . 04/12/2026 03:08 PM <DIR> abnfpged.default 04/12/2026 06:29 PM <DIR> jdfj91sd.default-release-1775960183850 04/12/2026 06:48 PM <DIR> f1jq4mlq.default

Only the profiles beginning with "j" and "f1" are seen in the "about:profiles" screenshot I have attached. And I have attached a screenshot of my profiles.ini file. Also, in the abnfpged.default directory I restored, where is the list of all of my open windows and tabs? FF used to keep that in a sessionstore.jsonlz4 file, but that file is only written when FF closes. I tried to save a copy when I was having problems, but I stored the copy in the same directory, which FF changed during the re-install process. Here is my profiles,.ini file:

[Install308046B0AF4A39CB] Default=Profiles/jdfj91sd.default-release-1775960183850 Locked=1

[Profile1] Name=default IsRelative=1 Path=Profiles/f1jq4mlq.default

[Profile0] Name=default-release IsRelative=1 Path=Profiles/jdfj91sd.default-release-1775960183850

[Install641D10338ABA448D] Default=Profiles/abnfpged.default Default=1 IsRelative=1 Locked=1

[General]

StartWithLastProfile=1

Version=2

[BackgroundTasksProfiles] MozillaBackgroundTask-308046B0AF4A39CB-defaultagent=lnvi5jn5.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent

I have not worked with the ;profiles.ini file in many years, as my FF configuration has not had problems. Thanks.

I replaced my default pdf application with PdfCraft but now, when I click on a pdf file, Firefox automatically opens two windows: one with Adobe and one with PdfCraft !?? Do I really need to uninstall Adobe to avoid this or is there a parameter somewhere to avoid this?

Folks,

Not sure if this extension is deprecated (last update was 6 years ago (Sep 17, 2020) 🤦🏽♂) but I wanted to know if this official extension is supposed to have sync support. Notepad is a simple little tool that is very valuable for its "basicness" (like stickies on mac, or note pads on windows). While the extension works locally, it seems not to be included in the suite of sync options currently offered under settings. At the moment, any notes taken on various computers using the same profile do not sync.

https://addons.mozilla.org/en-US/firefox/addon/notes-by-firefox/

Thx all!

Since the last update with the light purple background my firefox keep on freeze. Please i want to go back to the version before August 2026. I still run win 10 and can't afford a new laptop at this moment. Please help.