Firefox 社群討論區

I have always downloaded and used the beta version of Firefox on both my Windows 11 and Android environments. Recently I've noticed I'm no longer using the beta version on Windows 11, but am so far unable to find a download for it, either from the Windows Store or Mozilla itself. Can anyone tell me if it's still possible for members of the public to install Firefox beta on Windows 11 platforms, if so how, and if not, why not?

Every time I start Firefox lately, it keeps prompting me: "You must log in to this network before you can access the Internet." I have no idea what this means and have no problem accessing the Internet in any case. What suddenly started causing this !#@%$ message and how do I turn it off?

As stated, all the AI chatbots currently provided by Firefox in the sidebar (ChatGPT, Google Gemini, Le Chat, MS Copilot, Claude) cannot be accessed in the Chinese mainland. Could Mozilla add some chatbots that can be accessed in the Chinese mainland to Firefox (such as Qwen Chat, Kimi, Doubao, Deepseek), or provide an option for customizing chatbots so that I can use local model providers like Ollama?

I just turned on Firefox's free VPN, but I didn't see a way to choose a particular server. I'd like to watch some videos from other countries, but those providers won't let me watch them unless they think I'm in their country. I can do this with other VPNs because I can choose a server that is in that country. Why can't I do that in Firefox? Or can I?

I have set the setting for PDF files to Always Ask. When I select the "Open in Firefox" option from the dialog, it opens the PDF in a new tab in Firefox and ALSO launches Adobe Acrobat and opens there. I have not seen this bizarre behavior before today. How do I fix it?

Hyperlinks keep opening in new windows, not in the same/existing window where they were selected. Issue is not unique to Google Search results and occurring across multiple websites. At wits end trying to figure this one out. I have deselected the "Open links in tabs instead of new windows", turned off all extensions, and uninstalled & reinstalled Firefox. Issue is still occurring. Attached is image of my tab selections showing all turned off.

Apr 3, 2026, 04:18 CST

In the last 48 hours I haven't been able to access the following - https://www.co-operativebank.co.uk - they do not appear to be the problem - when I try the link the 'retrying' symbol on the top left of screen (?taskbar), flashes extremely rapidly and it appears the system can't find the website. Are you aware of this issue.

Hi, I'm running FF 149.0 (64-bit) on Windows 11. I've used profiles for a while now and on several occassions I've "lost profiles". Currently I have three profiles which I set up and edited the icon and colour associated with each. When I launch FF I see the Profile Manager and can select any of the three and I can create a new profile which shows here. However, once in any one of the FF profiles I don't see the others - by which I mean that when I go via the hamburger lines top right and click on the current profile, the 'other profiles' section is blank. I also cannot edit the profile from using the edit pencil top right (after clicking the hamburger lines and clicking on the current profile), it takes me to about:editprofile but the page is completely blank. Confusingly, if I go to about:profiles I see two profiles, neither of which shows up in the Profile Manager! I'm going round in circles trying to understand where to edit my exisitng profiles and make sense of the five profiles that don't all show up in the same place!

Why are you trying to chase people away, after update i had to reinstall it cause nothing functioned right, now I have to jump through hoops just to install ad Guard. It should not be this difficult to use a website. I think I will move over to chrome where they actually try to make life easier and not more difficult

I have a problem with 'efficiency mode' in Windows 11. Windows 11 forcefully puts many of Firefox's tasks into efficiency mode marked by green leaves within task manager in processes tab. It doesn't seem to do this to anything else except Steam Client WebHelper. My Laptop is always in max performance mode in all possible settings as it is always plugged in (this does not influence efficiency mode). It slows down performance making things take longer to load and might even break them. If you try to enable efficiency mode on a task it even warns you of this: 'Efficiency mode will lower process priority and improve power efficiency but may cause instability for certain processes. Do you want to continue?' There is no way to permanently disable it. Currently out of 19 tasks 8 are in efficiency after I woke up my laptop from sleep (I have 5 tabs open). Only way to stop it is to manually disable each one by one (right click on each task and disable efficiency mode). But Windows 11 will turn them back on automatically usually within a few seconds (it seems to depend on opening new tabs, reloading them or waking up the PC from sleep mode). From looking it up online there seems to be a way to disable it in browser on Edge and Chrome but that might be something else (I do not use the so I'm not sure). There was a solution for Chrome but it doesn't work on Firefox.

Is there any way this can be disabled permanently through Firefox or Windows 11?

When I open Firefox, all my bookmarked sites start loading at the same time. I have unchecked, the "Startup Open previous windows and tabs" option in General Settings. I also deleted, and added Firefox again, but all sites are still loading on opening Firefox. (Chrome browser is fine.) Any ideas? Thanks!

I went to [https://support.mozilla.org/en-US/kb/firefox-backup] and under "Create a Firefox backup file" at step 3 it says, "Scroll down to Backup, and click Manage backup" but when I went there no such "Manage backup" option exists as you can see in the attached screen capture. So what gives? How can I "Create a Firefox backup file"? I am using Firefox v147.0 (64-bit) on Windows 11 Please instruct. Thanks RJB

Hi all, Starting at the weekend or end of last week I think, when I send tabs to another device when that device is switched off then when I open Firefox on the other device, the sent tabs are loaded in private browsing windows, not the main window with my saved tabs in. Sometimes all sent tabs arrive in one private browsing window, sometimes in one private browsing window for each tab. As I can't drag private tabs into the main window this is really annoying! How can I stop this happening please? Cheers :)

Since version 149, the search box in the address-bar has a different behavior and layout. There may be cases, when this behaviour is better, but I don't get it. In my use-case, I have got to do several more clicks to select the correct search engine with every search.

How to get the old style & behaviour back:

enter: about:config in the address-bar. confirm security question. search the entry: browser.search.widget.new and set it to 'false'

No restard needed.  :-) Thank you, Firefox developers!

Would be great to have a checkbox in the settings and the option if you want your familiar solution changed. (add this at the bottom of the new select search-engine dropdown.)