Firefox Community Forum

1. My left-hand sidebar contained about 150 URL links, mostly not bookmarks. I have used this constantly for the last 10 years to access desired websites. 2. After installing 149.0.2 this sidebar with all links disappeared when Firefox was restarted. 3. I tried several suggested remedies such as changing profile or settings on General or Home tabs. None of these were successful. 4. I have seen a portion of my list twice, enough to believe the entire list is stored someplace. It displayed in a box on the Firefox page, but I cannot remember how I produced this list.

How do I get back to having a sidebar full of links?

how do i delete or remove the message about could connect error

Contributor note: See also /questions/1576275 for the detailed error message.

I'm really stumped and confused why this would be, but, I'm unable to sign in to my account on one of my devices, though I can access it from other devices.

I have a work computer and a personal computer. I want to have a profile on my personal computer signed into a an account I share on my work computer so I can easily access tabs and history across my these to devices that's separate from my main firefox account attached to my personal email. Got the profile signed in on my personal computer, went to sign in on my work computer and got a message "unexpected error." I attempted to disable the extensions and clear cache at the advice of one thread I saw from years ago but I really have had a heard time finding anyone with this issue at all.

Anyway, any help would be appreciated! Thanks!

I am following directions that advise to go to Settings and change the option to open PDFs as individual files. Currently, they are opening as a Firefox tab. I have tried several times to make changes that stick, even rebooting. But PDFs still open in a tab.

Please help. Thank you.

gmail no longer works in firefox. Nightly has been giving me a message about clearing cache and cookies for many many many months. After I do that, nothing changes and I still end up in a website about clearing cache and cookies.

Firefox ESR is not able to delete gmail emails after I check the delete box. It says they are deleted but the don't ever go away.

I cannot find any version of firefox that works with gmail. Please let me know if you have found one and provide a link for me to download that version.

thanks

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.

Since my Firefox application was upgraded recently I am not able to open my text messages on Messages for Web application. The application loads but when I pair with my phone the text messages do not open, it just goes back to the "pair with Phone" screen. On my phone it says "you're all set" like usual but my desktop does not show my texts or contacts.

I purchased VPN but for some reason it refuses to work on my PC. I have reloaded it several times but to no avail. I have given up and now want my subscription returned.......but how!!! I cannot find a way to do this, I know it's not made simple for obvious commercial reasons, but I will not give up until the money that I paid for something that doesn't work is back in my account. Can anyone help?

I have been using Firefox profiles for years, long before the announcement of the new profiles UI. The new profiles UI launhed with FF 144. I'm on the latest version, which is 149.0.2 and I still don't have the new UI. Specifically, I do not see my profiles in the new UI.

When FF launches I see the new UI but my profiles are nowhere to be see as you can see in the screenshots:

https://postimg.cc/gallery/tFXz00m

I have 2 profiles and they each have their own name.

Instead I am presented with 2 option "Original Profile" and "create new Profile". When I click on orignal profile, Firefox opens my default profiles which has its own original name. However, when go throught the new UI o switch profiles, I do not see my other profile. Moreover, if I click manage profiles, I don't see either of my profiles.

The only way I am able to launch my 2nd profile is the old fashiong via "about:profiles".

Why can't I see my profiles in the new UI?

On my 2nd profile, I don't even have the new profiles UI.

Why dont't I have the new profiles UI months after you launched it?

Please help!

I use a laptop that's estimated to be around 5 years old now, it still has good performance and rarely shuts down/crashes. The only performance issues it has are with Firefox, as it eats the most CPU and memory of anything else I use. Twice or so now, the following has happened within the past month: - Firefox notifies me that a new version is available and asks to update to it - I decline to do because I have tabs on there with unsaved/algorithmic work I'm in the middle of dealing with, and the browser update would mean losing all of it (or I just don't care) - At some point later, be it a few days or hours later, Firefox suddenly seizes up and forces me to close the application, after which it updates to the newest version.

While it's always frustrating to have this happen, it's generally pretty quick and I can get back to whatever I was doing (as my tabs reload). But today was different. Very different.

So, imagine. You're slacking off, watching some random videos online, and your screen (and eventually audio, too) freeze up. You get Windows to shut it down as it detects the application has gone cold, and it goes and tries to "report the issue", except that little loading screen doesn't seem to come to a stop. "Okay..." So, you click "X", and it goes away after a few tries, but the Firefox icon is still on your taskbar like it's still active. You click it, it doesn't do anything. You click on your other open applications, they also don't do anything. Suddenly, your entire desktop freaks out! You can't ALT+F4 (none of your keys work in fact), the screen is randomly turning black for fractions of a second. Only when you hold down the power button for what feels like a whole minute as a last ditch effort do you get your potato of a computer to go lights out. You press down on the power button again, it boots back up fine. Firefox reopens, and it gives you a little popup about pinning it to your taskbar.

Did Firefox literally crash my computer... to tell me I can use a free (and probably useless) VPN now?... IS THIS WHAT YOU WANTED, YOU LITTLE VULPINE BASTARD??!?!?!

I don't why it's acting like some immature incinerated furry spawn of internet Satan because I simply "decline" to update the browser, but it's really getting on my nerves. I have NEVER HAD an application, let alone a memory-munching browser like this, cause my entire PC to freeze to a severity I have not seen in a long time if ever in the history of using it. What is making it wreak havoc on my computer all for a stupid update that adds garbage I never use? How do I make it stop? Why has it been such an ass with me recently???

I can't let this keep happening, man. It's already caused me to lose some important stuff before, and now apparently it may be able to screw me over on other applications as well. Something could go seriously wrong on my end, and then boom, I move back to Chrome because despite everything, it treated me with more decency when it came to performance. Do better.

This has happened several times in the last 4 months or so, it had never happened prior to that and I've used Firefox for years. It now occurs when I open Firefox after my computer has either been shutdown, or the computer does a restart. I am signed in to my Mozilla account.