Firefox 社群討論區

idk when exactly this nonsense happen or with which update but thats outrageous.

why the hell it canceled in my setting the check mark at startup for opening previous tabs?! i haven't touched the settings in ages since i set them up so it had to be one of your stupid updates.

fortunatly chatgpt had a solution to bring all my tabs back otherwise i'd fucking rage out.

i'v been using firefox for ages but after this i was really thinking i should switch to something else.

Hello, I am currently using Firefox Beta and I would like to switch to the regular Firefox Release without losing any of my data (browsing history, bookmarks, passwords, add-ons, and settings). I would appreciate guidance on the safest recommended method. Specifically:

Is it safe to install the Release version over Firefox Beta, or could this cause data loss or profile conflicts?

What is the best way to create a full backup of my Firefox profile beforehand?

Should I expect any issues with add-ons after moving from Beta to Release?

Do you recommend enabling Firefox Sync as an additional safeguard, or is a profile backup enough?

In case something goes wrong, what are the recommended recovery steps?

My setup:

Operating System: [windows 10 ]

Thank you for your assistance.

Hi everyone

I used Refresh Firefox option and it created "Old Firefox Data" folder on my desktop.

Awesome stuff. Sadly I cant get rid of it, here is why:

1. At first it said that the folder is used by another program and I cant delete it because of that. Cool, I decided to uninstall Firefox and make a clean install, so I have space to delete the folder too.

2. Long story short, it didnt work. I removed Firefox and tried to delete that folder, but wait for it, yeah I cant because I need permission from MYSELF. Awesome stuff.

3. I decided to use safe mode, so I used run command to run msconfig and I changed it to boot in to safe mode. But wait for it! YES! Its bugged and I cant login in safe mode, because pin is useless and it doesnt give me option to use password, so after hour of various things I got back to my normal mode via CMD commands. THANK YOU MICROSOFT.

4. So now Im stuck with the lovely "Old Firefox Data" folder, which cant be removed normally, neither in safe mode and wait for it! NEITHER WITH ADMIN CMD, not even the takeown /f "Old Firefox Data" /r command. THANK YOU MOZILLA!

So is there someone knowledgeable enough to help me to get rid of that folder pretty please? Like really a lot please.

What the title says. At some point Firefox wanted to update to a newer version, it asked me if I wanted to refresh it, I said yes, nothing much happened besides I got a brand new folder I can't remove from my desktop. It asks for admin rights, I have admin rights, it's a local account, I am the only user, I tried the command prompt solution and it didn't help. Is there any solution to this at all that doesn't involve me getting into the bios?

MacBook Pro M4, OS v 26.0.1 Firefox runs fine as administrator. There is an issue with standard users. I have completely uninstalled and reinstalled Firefox multiple times from the Firefox webpage. When I try to run Firefox as a standard user a screen pops up. Firefox is trying to install a new helper tool - enter admin name and password. After I enter the user name and password the pop up screen disappears. If I click on the Firefox icon the same pop up screen appears again. I can select cancel, however, when I go to the Firefox icon it is bouncing up and down for several minutes. If I click on the Firefox icon again after it stops bouncing the process repeats itself.

One last thing Firefox was running fine until the latest update on 11/02/2025.

How can I resolve this issue?

Regards, David