Firefox Community Forum

Hi - Firefox placed an 'Old Firefox data' folder on my desktop and I am unable to delete it. I'ver tried third party apps, logging in as administrator, command line delete, uninstalling FF but am still stuck with it and my network settings are wrecked so I can't re-establish connection to the internet on that machine. Anyone with any suggestions as to how I get rid of the 'Old Firtefox data' folder ? Many thanks...

I did not ask for and do not want profiles at all. It seems this was added when firefox updated? How do I get back to the old version with no profiles. It also lost all my bookmarks etc. Help would be appreciated.

I have a bunch of profiles set up via "about:profiles". Some of these are associated with different Mozilla accounts, some are not. Today, I wanted to rearrange those profiles to put some older profiles that I do not use as often lower on the page than more recent profiles. I thought I remembered there being an overview text file that included a number for each profile, the folder that profile's information was stored in, etc. When I went looking for that file, I could not find it, so I went looking for help articles and discovered that there is a new profile management tool.

When I tried using the new profile manager via "about:profilemanager", none of my current profiles are visible, so I cannot use that tool to reorder my profiles.

I would be grateful if you could point me to an article explaining how to reorder the profiles in "about:profiles". If that is not possible, I would appreciate a help article explaining the rationale for making these two uses of the word "profile" distinct, the ways in which these profiles are different from each other, and how to transfer settings from the older version to the newer version. I have everything set up just the way I like it within my current profiles and really do not want to have to recreate them from scratch...

hej, you write oh dear, no print is possible :-((( but you write to me, that I have win10... but it is a new machine with win 11...and firefox does not work, i cant se my mails?!?!!?

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?

Every other day, I open FireFox and may get the following error: XULRunner - This profile was last used with a newer version of this application. Please create a new profile. Also, this error may come up while I already have had FireFox open for a while. Once this error comes up, I check the version, and sometimes the version is older than what it was, meaning, FireFox reverted back to an older version on it's own. I created a new profile, but the error comes back. I removed FireFox and all folders, and the error still comes back. There is nothing I can do to stop the error from showing up again. See attached images. I am on Windows 11 23H2, all windows updates caught up, and the current FireFox browser version is 138.03.

Recovered files and data from a failed M.2 SSD onto a USB. Did a clean install including reinstallation of Firefox on the failed machine. How do I recover the Firefox profile from the recovery USB so it can be transferred onto the restored machine?

I am tired of this bullshit.

So i was using the beta branch of the firefox and beta version stopped working with a site for some time. so i tried to come back to the stable version.

After i do that and fix my config. In every couple of hours there would be a notification window pop up with sound saying this

"firefox this profile was last used with a newer version of this application. Please create a new profile"

So i did create a new profile BUT i copy pasted my own configuration.UI stuff from my old settings from "About:config"

This notification STILL comes up FFS what do i need to do then?

HOW COME MY UI CONFIGURATION TRIGGERS THE DAMN NOTIFICATION?

I will not re-do my fckng UI configuration by hand.

Since the new "feature" profiles came out, I now always have this "originalprofile" in the browser (in the title bar) and in the Windows taskbar... It's really annoying.... Now my question is, how do I get rid of it again... on 3 more pictures, Firefox language is German...

Good afternoon. Since recently (probably after the last Firefox update to version 136.0) I have a problem: every time I start Firefox it requires the main password set in the settings. Before this problem did not occur, no settings were changed.

I read the official article on this topic, but the recommendations described there did not help me. I turned off the password, logged out of the browser, turned it back on, logged out again, and nothing. When I turned it back on, still at every startup it asked for the password.

I also noticed that every time I start it up, the loading circle next to the cursor spins, like something is happening. Can you tell me what it could be and how to get rid of this problem?

OS: Windows 11 24H2.

Pinterest has been slow to load for the past month. Now it will not load at all. It works fine in safe mode. A fresh install of Firefox did not help anything? I see other folks are having the same problem. Amazon and Facebook are now doing the same thing in Firefox. These 3 programs work without issue in Chrome Brave and Edge. Any one have a fix?

Thanks, Wayne

Greetings...

I work with multiple computers that each use Firefox as their web browser. In each of the Firefox installation are bookmarks, history, and passwords that have been saved over time.

Q: Is there a manual method available that I could use to merge/combine two or more of these bookmarks/history/password "collections" into a single collection, then install the new combined collection on one or more of the multiple computers?

Please advise. Thank you very much! Take care...

I'm setting up Firefox on a new computer. I haven't done this for a while and the interface has changed, so I'm not sure how it works.

I want to move my Firefox profile to a directory in the Documents library to simplify backup. Following the Mozilla instructions I found, I opened about:profiles and clicked the Create New Profile button. I deleted the contents of the directory that Create New Profile created and copied the contents of the default profile directory to it. The last step is to tell Firefox to use my new profile instead of its default.

But the about:profile page lists three profiles: default-release, default, and my new one. The first two have a Set as default profile button; the last does not. So it appears that I can tell Firefox to use the default-release profile or the default profile, but there's no way I can tell it to use my new profile. I can only Launch profile in new browser -- presumably something I'll have to do every time I run Firefox.

This makes no sense. How can I tell Firefox to use my new profile -- not to launch a new browser with it, but to use it, period? If I can't, why can't I? Every version of Firefox I've ever installed up to now allowed this.

Also, the default-release profile section of about:profiles has the note "This is the profile in use and it cannot be deleted." So it appears that Firefox uses the default-release profile instead of the default profile as its default profile. What is the default-release profile? Why isn't the default profile the default profile?