Diễn đàn hỗ trợ Firefox

I use an iMac (2019) and MacBook (2015) but my tabs aren't syncing between the two.

I've refreshed the syncing a few times but the MacBook is still showing two lots of tabs for the iMac, and both of them are showing pages that are no longer open.

I'd really like to be able to move between the two so if anyone has any suggestions on how to get FireFox to sync, I'd be really grateful. :-)

I had to actually sign up fort a Mozilla account,the multiple hoops I had to jump through were ridicules, in order to ask a question of Firefox. I do not want my address bar to be my search engine. How do I disable the search engine in my address bar? And now I have to wait for an answer!!!!!!!! I used to love and trust Firefox. Not anymore.

Since latest upgrade (1/16/2026) I cannot log in to Outlook email. This is specific to Firefox 147.0.1 (Chrome and Pop Peeper logins to Outlook work fine). I tried clearing cache, updating, restarting, rebooting, trouble-shooting mode, private window etc. to no avail. I get 400 error from Outlook.

In my new PC on Windows 11, I decided to install the Mozilla Firefox from the "Microsoft Store". However, unfortunately, I realized that some Add-ons (extensions) where missing from the Firefox's "Gallery of Extensions". Among them, the well known and valuable extension '"Enhancer for YouTube", which I have installed on every browser that I use. So, if I don't find a solutions for this issue, I am about uninstall the Firefox and reinstall it from Mozilla's Website..

Recently, Firefox updated and ask me to setup a profile, which I have not yet done since importing my data from google chrome in 2025. After skipping the setup, Firefox then deleted all my data and it has since been irecoverable. I have already checked the box last update that specifically said to not ask me again for setting up my profile. After the recent update, the question popped up again and now I cannot recover my original profile, all my browsing history, all my browser-saved data, and all my cookies and logins

Hi,

Looking at my Firefox 147.0.1 settings for macOS 26.2 (Apple M1), I'm trying to adjust two settings:

-- I'd like to remove Languages -> English (GB) (its existence has odd side effects, like triggering United Airlines to offer fares in Pounds Sterling, and I'd prefer to just have English (US))

-- I'd like to disable Play Audio and Video for about:welcome (in regular and private windows)

I can see no way to accomplish this currently -- why?

Thanks.

We are a high school alumni association and Firefox is used primarily for our social media sites but yesterday it started not opening our Facebook page properly - doesn't open the whole page, won't open the comments and if you click on something it just sits and spins

All of the sudden when on say a Amazon page and you LEFT click on a item description typically a page will open about that item and now it doesn't anymore. If I want to see that item, I have to RIGHT click on it and have to chose "open link in new tab" and then can see details of my item. This happens on other pages as well. I can also hold down the LEFT side of the mouse and I will see a tab open that says "we can't preview this link" and in bold text it says "visit link"

How can I get it back to working like it should. Issue is only with my laptop, my other computers work just fine.

Scott/Omaha

When using BT Mail i am unable to input email address from drop down box which appears when typing intial first letters.

I can do this when using Edge.

I have updated my browser to latest version. Have also contacted Bt and have been advised that the issue is your browser. My wife has a chromebook and has no issue with the above problem.

Please advise.

John Tibbles

After updating to latest version of Firefox, my request to go to website is showing "Access Denied" (e.g. www.aa.com)

I have four identity containers (container tabs) that I need to open simultaneously all the time, but doing it manually one-by-one is tedious. I want to create a one-click launcher via the command line that starts all four container tabs at once, yet I couldn’t find any switch for it in the help page I checked: https://wiki.mozilla.org/Firefox/CommandLineOptions. My Firefox version: Firefox Nightly 149.0a1. My Operating System is Windows 11

I want to use the AI sidebar (https://support.mozilla.org/en-US/kb/ai-chatbot) and context menu to query my own chatbot. How to add my own chatbot(s) there?