Diễn đàn hỗ trợ Firefox

About 3-4 months ago I started experiencing frequent tab crashes, to the point where if I have even 2 tabs open, one will be non-responsive until the crash page appears. Sometimes not even then, as I've just had YouTube up and it will crash with shocking regularity.

I used to be able to have 20+ tabs open plus a game with no issue at all. I've done nothing different with my computer, no new hardware, no new software besides installing and uninstalling games. My upload and download speeds remain the same. Only Firefox is being a stinker.

What's happening?

When I try to log onto Facebook via Firefox I can see only three articles and after that everything goes blank. I don't have that problem when I use Edge. What can be the problem?

Whenever I have just 1 Window of Firefox and just 1 tab open, task manager ALWAYS shows 14. Why is this? I have refreshed Firefox and lost some of my settings, it did nothing. Have I been hacked and someone else is controlling my browser?

Screenshot shows one firefox with one tab and yet 14 next to it in Task Manager

Auto updated to firefox 150 yesterday. What's new screen announced the rollout of the free in browser vpn had reached us (in Canada). Clicked the link to set up, went to screen to follow instructions. There's no vpn icon in the firefox menu bar, no matter what I do. (And I have done everything obvious.) Was the VPN not in the actual update I received or is this some bug/glitch? Thanks.

last night when i closed the system down, i had 5 spacial tabs with names, and apx 50 other tabs open, come to start the system this morning.. all gone.. nothing.. just a new firefox.. all my history.. gone... this is not good, as the 5 spacial tabs that i had where from seriten sits that need to be their,and now.. just gone.. the lot... and all the setting are correct..

I am unable to dismiss the Amazon Search icon from my Firefox Homepage. I can dismiss others, but whenever I click on Dismiss for the Amazon Search it just always remains. I want it gone.

hello good day i know this is asked many times but i've tried a lot of solutions that i can find online but none works so here i am... https://share.firefox.dev/4uKI7Xf im running firefox in a windows 10 virtual machine, 3d accelerated, some websites (even google sheets) that make my firefox use a lot of cpu check/uncheck "Use hardware acceleration when available", uninstall, troubleshoot mode... is no different any help is appreciated, thanks

I've used Firefox since Revision 15. I've used Adobe Acrobat 9.5 Pro Extender for almost as long.

I have Win 10 Home, all updates applied. My system is 64-bit. It has 32GB of RAM. Some tabs - e.g., www.yahoo.com/finance - balloon and consume so much RAM, that I have to restart Firefox.

After most recent updates 151.0 Adobe no longer will print to .pdf. This is HUGELY disruptive.

Having used computers for work for over 45 years, I understand it is hard to ensure that an update does not become a down-grade.

I do not want to to move to a newer version of Acrobat. What I have works well for me.

Can someone PLEASE make whatever changes are needed, so that Adobe Acrobat works smoothly?

I'm using a Windows/Linux client called WSL (Windows Subsystem for Linux). I've installed Debian as my WSL OS and for a long time I had Debian version 10. Firefox worked fine with ver 10 but this morning I upgraded to Debian version 13 (which required me to upgrade to the latest version of Firefox).

Firefox still launches okay but I wanted to change my home page to Google. So I clicked the 3 lines at the top RHS which showed me a popup menu but none of the options was selectable. Eventually I twigged that to change settings I needed to launch Firefox using sudo.

I managed to change the home page okay but I then realised that if I launch Firefox without using sudo, my new home page is ignored. Conversely (if I launch using sudo again) Firefox launches at a tiny size and can't be re-sized (at least, not using my mouse cursor). I've attached a small screenshot.

All I can do is to display it full screen and then I can tell that the home page is indeed now Google. I don't remember having these problems previously so can anyone give me a clue as to what I'm doing wrong??

I recently have been having issues w/ Firefox updates & data loss involving an extension I use / Clippings. For other reasons (gaming) I installed Brave browser to compare performance. As a result of the issues I've had recently I decided it would be a good idea to have a backup (export) of my passwords & decided to Import the .csv file created into the Brave browser. The last line of the .csv file has a line that begins w/

chrome://FirefoxAccounts

.... along w/ several other fields. The information contained implies that it has something to do with Sync & also references a URL:

https://identity.mozilla.com/apps/oldsync

... along w/ MANY other operands.

What does this line do  ? This does NOT appear to be a working 'setting command' option (like: about:logins or about:debugging) in either Firefox or Chrome. The first 3 cells look similar to (some information changed):

chrome://FirefoxAccounts a5847f4e7faf42f19f17c0f531c77acc {"version":1,"accountData":{"scopedKeys":{"https://identity.mozilla.com/apps/oldsync".... more

My FF Browser introduced a vertical row of rings which I want to get rid off. Im using W10 and FF Version 151.0.4 (64-Bit). Rings are stable, updates show them again. Any Help???

Moderator note: Moved from the Firefox for Android forum to the Firefox Desktop forum.

After realizing what was being done to my PC, I unplugged it to stop the hacker. And I have since been able to recover my program, except for my ad blocker. Before this unusual encounter, I was using a free ad blocker. I want to restore it to its original status, if possible. Thank you for any help, Leman H Wilson at 7:09 PM 6-3-26

Hello there's just been an update on my laptop for Firefox.. and now I'm logged out of every account I had opened on my browsers!! I googled this and seemingly this problem has happened before with Firefox..

Running windows 10. I installed the newest vewrsion of Firefox, and now I can see or find bookmarks anywhere. I tried the tutorial but I dont see anywhere in my computer where a list of bookmarks are.