Firefox 社群討論區

Mozilla usually doesn’t restore all the windows I’m working in; when I open it, it only restores a few of them. I usually use the ‘History’ > ‘Recently Closed’ > ‘Reopen All Windows’ option, but this time not all the windows I need are being restored. My most important window, containing 1,000 essential tabs for various articles, hasn’t been restored, and it seems as though I have absolutely no chance of finding it at all; I don’t even have a ‘Restore previous sessions’ button. I don’t know how to get that window back, because restoring the tabs one by one would take an age and I’d probably lose a lot of them (it’s very important that these were tabs, not bookmarks). What should I do?

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I've been using alt+a to open new tabs in a multi account container for a long time. Recently that shortcut stopped working possibly with the update to v148 as indicated in this reddit thread.

alt+a is not listed as a shortcut in about:keyboard or in about:addons > manage extension shortcuts or in my ubuntu shortcuts nor in any software I can think of thats running. I've disabled all my add-ons except multi account containers to no avail. I can change the shortcut to another and it works fine.

Why would just that shortcut stop working? What else can I do to diagnose the problem?

FireFox browser closed and when I opened it all my bookmarks are gone, all of my history is gone everything is gone as though I never ever used firefox in my life.

I generally get Firefox to save all my logins and passwords. However, I have several websites excepted. Recently, I tried to enter another 'exception' but Firefox isn't registering it i.e. it opens that logon page with all the details, including password, already entered, despite multiple attempts to have it saved as an exception.

When i downloaded Firefox yesterday i noticed my desktop icons the pictures changed to Firefox picture is there any way i can them back to the way they were before. Barbara Hudson.

All my bookmarks disappeared and the bookmark button does not work. I have refreshed Firefox - no change. I have uninstalled and reinstalled Firefox but still no restoration of Bookmark button functionality. OS Win10

Hello, Mozilla. I really appreciate the way you think about internet access. What you stated about the app is truly reflected within it: fast connections, accurate results, and most importantly, the security. However, when it comes to advertisements, I was really expecting that whenever I watch YouTube contents, there will be no ads shown. To my surprise, ads are still there. I provided a snapshot of my desktop to give a proof about this. Is there somehow a way to get rid of them, like perhaps an extension to block ads? If there's none, that's fine as well. Thank you and high praise to the developers of this browser.

on other webpages a black bar drops down from the bookmarks bar and blocks the top of the pages, how do i get rid of it? oddly on this page, the bar does not show up

Hello,

I've been using the profile manager, and wanted to delete a profile that i have made. However, when i select the option to delete it, it only opens up a new tab in the profile called "about:deleteprofile', which displays an empty page and does nothing. Then, I would try to delete the profile manually, in the profiles folder, but if I opened firefox or restarted my computer, it would just come back. I have attatched the relevant images below.

There is an issue with MKV video playback with MP3 audio track in FireFox. The problem is that MKV video plays MP3 audio track without any sound. With AAC audio track the problem is that MKV video initially downloads whole video and only then plays it. In comparison with MP3 and AAC the benefit of MP3 is much better quality and it starts playing without downloading whole video like MP4.

It would be nice if you add support MKV video with MP3 audio playback.

Video file link: https://v01d.have.lv/vp/movies/test/fm/al.mkv

Hello and good afternoon. I have a problem with my last session as it doesn't appear, even when I try to do it manually in Settings-History-Import and backup-Restore, it shows me some options of different dates with all my last browser history, but none of them works, it simply doesn't open any of the web pages. I don't have any other profile, and I already tried the troubleshooting too I Hope you can help me. Thanks in advance

I want to disable AI on Firefox. I noted a response to another request, that in the first quarter of 2026 something will/may be introduced to allow users to choose not to have an AI input on their Firefox. When will this be available?

I can see why AI summaries on Google searches can sometimes be useful. But I don't have any need for AI-related things on my browser and certainly don't want to contribute to AI's impact on resources etc.

It should be a simple yes/no choice. If it's too complicated to provide a yes/no choice that itself is a very strong indication that there's good reason for needing that choice. What is happening, and when?

Last week I went through the process of choosing a profile so I would not be faced with choosing whenever firefox opened. ( I was guided through the process by some of you elders.) My bookmarks are all in place but that history no longer accumulates, not even during the session I am in. I must have hit something without knowing it. I have gone up and down settings on several levels, but I can't figure out what will make this work again. It is helpful to have this reference so I would appreciate help. Gratefully, Marjorie Kinsey