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So when i first updated to 137.0 tab groups were working fine, then one day i couldn't create any more. I had a previous tab group, but when i deleted it, there was no way to make another. I tried dragging tabs on top of each other, tried right clicking a tab to "Add Tab to New Group" but there wasn't an option. I updated to 137.0.1 to see if that would fix it, and it didn't. I then tried to uninstall and reinstall still no. I turned my computer off and then on again and also no.

I'd really appreciate any help with this because i'm kinda tearing my hair out trying to find out what changed.

I restarted Firefox on my Mac earlier, which I think updated it from 136 to 137. After reopening it, web pages won’t load anymore. They either time out or just load indefinitely without doing anything. I went through the troubleshooting page and tried reinstalling it, which didn’t help. My computer’s firewall is off as well. I’ve tried refreshing it multiple times, and I get a message that Firefox has crashed before it actually refreshes. After that, pages will load normally for a very short amount of time (about 30 seconds) before stopping again. Pages are still loading normally on Chrome and Safari, so it’s only Firefox that’s having an issue. Does anyone have any solutions for what this could be/ways to fix it?

My setting for "Open previous windows and tabs upon startup" is no longer working. It always used to, for years! Now whenever I launch Firefox, I only get a single, fresh tab.

Access Denied

You are unauthorized to access this resource.

Reference ID is: 2cfa54eb32

Troubleshooting Steps

1. Reload the home page and try again.

2. Clear your browser cache and try again.

3. Try logging in with a different browser.

4. Try logging in with a different device.

suddenly my work account at https://outlook.live.com is a completely white screen.

access to other instances of this account (Onedrive, filesharing etc) are fine. Email account works on phone, so no problem with log-in

I have re-started the browser

With the upgrades to Firefox, I now cannot load any websites, even Mozilla Support pages. Have to use a different browser. Might this have to to with DNS over HTTPS? HELP! Thank you, very much.

I left my computer for a while, and when I returned and took it off screensaver I started going through my emails when I noticed that the bookmarks on the toolbar are missing. The toolbar is present, and I toggled between only show on new tab, never show and always show a few times, but they're still missing. I even tried bookmarking two webpages, but they were not added to the toolbar. As stated, I have the bookmark toolbar to always show. Firefox just updated yesterday, 4/8/25 to 130.1.0, and I'm pretty sure that they were there this morning, but I can't be totally sure. I noticed my computer had updates available, so knowing updating it would not have any effect on Firefox, I restarted the computer while updating so I could also restart Firefox with a bit of a delay. I had also restarted it twice before without any luck. The only thing I did besides updating Firefox was enabled the sidebar, which I then turned off and still did not have any bookmarks in the toolbar. Any assistance would be greatly appreciated, but I may not be able to view and any responses or make the stated changes until Friday.

when i go to a site using firefox i get this message:

Secure Connection Failed

An error occurred during a connection to www.google.com. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Learn more…

When I put my laptop to sleep, websites I am logged into are often logged out when I return. Note that I don't close Firefox. The tabs generally reopen but require login again. Windows 11, Firefox 137.0.1

For example, I put my laptop to sleep for lunch. When I returned, tabs were there, but I was logged out of gmail, Discord, and a website I was logged into.

This seems to happen more frequently recently, but not every time, as far as I know. But this is a relatively new problem, possibly related to a new laptop. Occasionally I get a message that there is trouble restoring my session.

i share my computer and when someone else uses the browser they see the last page I used. Emails open and they can see my private emails. how do I stop this without erasing history everytime I use it

suddenly after a firefox upgrade this afternoon, the contacts lists for gmail started to get reduced in size so small it looked like specks of dust instead of names , adresses, etc.

another pc here which hasn't been upgraded  has no problem.   both pcs have the same 5 GMAIL acccounts, 

but the secondary (also sedentary ) has not been used for 2 or 3 days. Both are laptops, with Win 11 and are upgraded as soon as they available