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I've used Firefox as my default for years and years. Yesterday I got some popover telling me I had to create a new profile or I'd lose all my Firefox data, history, bookmarks, etc. It would not let me avoid this. So I did. Still lost all my history, started over. Today it's doing the same thing. What's up? I don't want to move to Chrome.

I already had two separate "old style" profiles, for personal and work browsing. I just created a new profile (from my "old" personal profile) using the new Profile Manager. I managed to import data from my "old" work profile to the new one. In this process, I ended up creating two new work profiles (with different names). Now, I simply cannot delete one of them. Clicking on the delete icon on the profile manager opens the new profile, and I understood I should see a confirmation dialog corresponding to the "about:deleteprofile" URL, but nothing is shown on this case. Also, this new browser instance doesn't show any profile management menu items.

I tried manually removing the profile directory on ~/.mozilla/firefox hoping Firefox would understand it is gone and would automatically get rid of it, but instead it automatically creates a new empty profile on the same directory, and also unmanageable and undeletable.

So, if someone could please tell me how I can get rid of this new bogus profile, I'd be very thankful.

BTW this whole "new" profiles is a cool idea, but IMHO it was launched in a premature state. They are prettier, indeed, but besides the above annoying bug, there are no CLI args to switch directly to a "new" profile or open the new profile manager. This makes it impossible to use apps like Junction which allows you to choose a browser when you try to open a link (which worked just fine with the "old" profiles)

This morning when I started up Firefox it had a pop-up about the new profiles feature, asking to create a new profile. Just out of curiosity I clicked the create profile button to see what the interface would look like. Since I didn't actually want to create the profile I hit the delete button, but nothing happened. So I closed the window. I then tried delete the new profile (then called "Profile 1") by hitting the trash can from the choose profiles screen. Still nothing happens. At this point my original profile window is still open, but I close everything to restart Firefox in hopes that it will allow me to delete this profile I never wanted to begin with.

The Choose profile window comes up, I select original profile and nothing happens. I can open the new "Profile 1", which I have since labelled "Bad Profile".

D:\Users\<USERNAME>\AppData\Roaming\Mozilla\Firefox\Profiles doesn't appear to have my original profile anywhere.

I'm deeply concerned this beta feature I never asked for has deleted my original profile when it should have deleted the new profile.

Hello

I want some help please. When I open links from viber or discord, the links open in a new firefox window not the one am using at the time and they open on a no firefox profile window. I don't know what do and how to make the links open in the right firefox window. Maybe you can help me somehow?

We are currently rolling out a profile management solution based on Ivanti User Environment Manager. In order to configure file includes and excludes in the profile management tool, we have to “standardize” the Firefox profile path in the filesystem. We have implemented a PowerShell script, which reads the currently used profile from %appdata%\Mozilla\Firefox\install.ini, renames the appropriate profile subfolder to “firefox.default-esr” and replaces the entries in installs.ini and profiles.ini.

The script seems to be reliable. However, for around 10% of the users, we are seeing issues when the user launches Firefox after the “firefox profile migration” happened. Firefox opens but none of the GUI controls is accessible. Firefox is completely unusable. See screenshot attached.

We do have workarounds to resolve this issue, such as completely wiping the %appdata%\Mozilla\Firefox folder and let Firefox re-build everything from scratch. But we are still trying to find the root cause the issue, because our customers have more than 100k clients, what will be a big impact and hard to handle for the helpdesk.

We are currently unable to reproduce the issue on test clients. Even copied Firefox profile folders form affected clients don’t show the issue on other clients.

Therefore we want to find out and ask for your help:

- Is there a supported way to “standardize” the filesystem folder name of the Mozilla Firefox (ESR) profile of a user? - What are the files within a Firefox profile that are required for the profile and the application itself to properly start? - Do you have any idea which files in a Firefox profile (in a corrupted state) could cause our issue?

I copied my profile because I had to reinstall TB. When I copied it back, I got all my emails but not my address books.. How can I get these back? Also, I got my emails back but it didn't include the number of each. How do i get these back?

I am using the new profile switching feature in the UI, from top of the hamburger menu. Firefox is my default browser on Windows.

Now, I want all links I activate from other Windows programs to open in a specific profile. I use the other profiles for auxilary tasks.

Is there any way to achieve this?

)Frode