Diễn đàn hỗ trợ Firefox

When i upgraded Firefox my old profile doesn't show up now. I found my old profile under about:profiles but when i click on the Launch profile in new browser i get this message, "You've launched an older version of Firefox. Using an older version of Firefox can corrupt bookmarks and browsing history already saved to an existing Firefox profile. To protect your information, create a new profile for this installation of Firefox" I did create a new profile but how do i get my old saved data, add ons etc to the new profile?

Since adding the recent updates for Mozilla my Bookmarks menu which was on the left side is gone. Using F10 or Ctrl does not work. Please tell me how to get it back to the left side of the screen

Lately, whenever I try to open a PDF from a website open in Firefox, the tab crashes and the PDF does not open. An error stating that the Windows file-dialog has crashed is displayed at the top of the tab. I tried to attach a screenshot of the error but that action only generates another error.

This condition does not occur when I try to open the same PDF from the same website open in either Chrome or Edge, the PDF opens properly which leads me to believe the problem is in Firefox and not my Adobe installation.

Thank you

I have accumulated a LOT of bookmarks over the years. I want to streamline it and delete several so I have room to add more but it will not delete them. How do I go about deleting the bookmarks I want and adding more that I do want? It's very frustrating

Mozilla Firefox constantly not responding. I have been unable to access any of my sites, as the browser doesn't seem to be working. Very frustrating. How can I refresh Firefox to reset it??

I couldn't find a place to discuss topics regarding Bugzilla itself, so I'm looking in this community. If there's a better place, please tell me.

The title is pretty self explaining. I submitted a bug report on Bugzilla and I want to edit my bug description. How can I do that? I didn't find a way to do that. Maybe I'm overlooking something.

If there's actually no way to edit your bug description and comments, then I think Bugzilla is even more trash than I already thought it is. In my opinion that's standard and it should be supported, just like it is supported on proper tools like GitHub. I don't like Bugzilla because it doesn't look as clear and modern as GitHub or GitLab, has a worse text/markdown editor and it seems to be lacking some useful features. It's good that Mozilla creates some competition to big tech companies but it's also valid to criticize their products if they are simply worse (which is disappointing but nonetheless, it's true sometimes).

Let’s say I have 20 tabs open, which I don’t quite remember anymore but occasionally return to. Naturally, I have the browser set to restore all tabs on startup. At some point, for one reason or another, a second browser window opens in the background. I close my main browser window, and I’m left with just this second window. When I close that one too and then reopen the browser, I no longer see my 20 tabs — I only see that second window with a single tab. In the Firefox View menu, I don’t see my 20 tabs in the list of recently closed tabs or in the list of open tabs. Is this expected behavior? Are there any plans to fix this?

Is there a setting so that bookmarks, when accessed in a folder, will always sort by name. It appears that every time you add new bookmarks to a folder they are added to the bottom of the folder bookmark list and not listed alphabetically. Thanks

Hi. Sometime over the last day or so I started having a problem with my 1Password Password Manager, an extension to Firefox that imports my ID and password to websites that require them. I am running Mac OS 15.4.1 and Firefox 138.0.3. Up to now it was enough to click on the 1Password icon on the right of the first "email" box. But now I get a popup saying "Press the 1 Password icon in your browser's toolbar to unlock". But I cannot find that icon in my Firefox browser. I assume it is a Firefox problem because I do not have the same problem when using Safari and 1Password. Help appreciated, ChrisD