Firefox Community Forum

Hi!

I've had issues with Firefox now for quite a while and they only seem to be getting worse. Performance is really bad, it's lagging while browsing, especially infuriating when typing as the letters come out at a stuttering pace. I've tried disabling extensions one by one, I've tried troubleshoot mode and experienced no major difference.

If I can't solve this soon enough I won't be able to keep using Firefox, as the experience is so frustrating. And it would be a shame since I've come to like it quite much.

Thanks!

I have "Always ask you where to save files" checked but when I save a file I don't get asked where to save the file and it's going into Downloads. I didn't have this issue before. Something isn't working right since the last few updates.

Pat

I have configured Firefox to use a proxy, and I stored the credentials in the password manager. However, every time I open Firefox, it asks me to enter the credentials again.

How can I store the proxy credentials persistently?

Hello, I’m using Mozilla Firefox on Windows 10.

The issue happens mainly on YouTube: – Videos stutter every few seconds – Audio sometimes goes out of sync – This happens on 1080p and 720p – My internet speed is stable (~XX Mbps)

Bruce Caress

May 7, 2026, 15:17 CST

Hello, I've been watching MSNOW at 4pm eastern and after about half an hour it crashes. I get a message to send a report and restore the tab. I restore the tab which works for maybe ten minutes and crashes again. I am using Windows 11 on a new computer. I'd appreciate some assistance. Thanks. Bruce Caress

Moderator note: This question has been edited to precise Firefox and OS version, based on the crash reports.

Unfortunately the paste is broke once again, but differently! When I copy text from another website (e.g. Wikipedia articles or YouTube video titles) and try to paste the values only (ctrl + shift + v), nothing happens except for a little black box appears that says "paste." Doing a normal paste works and pasting (whether values or otherwise) within the google sheet works as well, only between sheets and another website.

After installing Mozilla on my mobile phone and syncing with my laptop all my bookmarks and history are GONE from my laptop. When attempting to restore them, following your suggested instructions, no dates appear when clicking the restore function. Deleted Mozilla from my mobile phone, still no good. Do I need to recreate all my bookmarks again?! How? When attempting to bookmark a new site it does NOT bookmark! No new history is showing either! Very disappointing, should I just return to windows again after years and years with Mozilla? Andrew S

Hi there,

I woke up this morning and opened firefox. Normally it opens the days previous tabs and this morning it didn't. When I tried 'restore recent tabs' it didn't do it. When I went into history and found the previous day's back up and tried to restore it also failed. Can you help?

Best wishes, Inez

After updating to Firefox 147.0.3 all of my browser history (along with open tabs at the time of updating) is lost. I just updated to Windows 11 workstations (plus a couple of older Windows 10 workstations) to the current (Feb 2026) updates too. However the history data was lost before the Windows updates. I noticed that with the previous update of Firefox that saved login information was also lost. Who is doing your program updates, a chimp?

In the past when an update was done the browser would open back up with all of the previous versions session tabs in tact. But not now.

I've lost several tabs of research that was being done. Based on what has been happening, I will HAVE to change to some other browser. This is a shame as I've been a loyal Firefox user since day one. Good bye Mozilla and Firefox.

Please sell me uncapped access with built-in VPN. Let me pay for this. I am not interested in the existing "Mozilla VPN" service because it requires an external application outside of the browser, which is not always compatible with systems mozilla is deployed to.

I have tried over several days to uninstall and reinstall Firefox to avoid tabs constantly crashing. While I've done this and multiple shut downs and restarts it continues to crash and can't figure out why. Please help.

Hi,

This is since the last 2 updates.

I usually maintain 2-3 active windows with multiple tabs. Everytime I turn off my PC, when I turn it on again, and I open Firefox, all my windows and tabs would be restored as I last left them. And if I accidentally closed the windows, I can select reopen Recently Closed Windows.

But since the last 2 updates, after I close the window, the option to reopen Recently Closed Windows were still grey.

And it's a hassle that every time I restart my computer, I need to go to Restore Previous Session to have my tabs open again.

And if I or another user opens it and started a new tab/session without restoring, I will no longer be able to restore my previous sessions and would lose all my tabs.

Can you please tell me why the feature is changes, and is there a way I can easily restore my previous sessions without the trouble.

Thank you.

Jennifer

I refreshed the browser, I switched off all of the extensions; makes no difference. If I switch adblock plus back on, it doesn't block ads. Everything is super slow. It takes forever for some pages to load. I had no problems before the most recent update.