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I had to wipe my laptop as my Ubuntu 20.04 installation was getting messy. I followed the official instructions about Firefox profiles and backed up the folder containing my profile.

Then I installed Ubuntu 24.04 and now I can't load this old profile. The instructions simply don't work.

I'm not sure if my old installation was snap or not, but now that's not possible to check as I wiped the laptop.

If I open compatibility.ini in the old profile there is this value:

LastVersion=128.0_20240704121409/20240704121409

I'm sure I'm putting the profile in the correct folder: ~/snap/firefox/common/.mozilla/firefox/

So it seems I've lost all my passwords, extensions data and history.

Are the official instructions on how to transfer profiles wrong? Is there some other way to get my data back? I'm feeling pretty desperate here :(

muru
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user568021
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1 Answers1

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I've copied profiles between Ubuntu systems and, regularly backup my firefox profiles. All firefox profiles are found in

~/.mozilla/firefox

It's not necessary to backup all the profiles found there. Rather than accept a default name, I choose the names of my firefox profiles.

Introducing a profile to firefox is done with the command firefox -P

Using a profile other than the default profile is done with the command

firefox -P *profile*

I do not use a SNAP installed firefox.

quill
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