Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Can't use my default profile after downgrade...

  • 2 odgovori
  • 1 ima ovaj problem
  • 6 views
  • Posljednji odgovor poslao Greg00pl

more options

I use Manjaro Linux. Since i cant use webgl in the last version of FF (updated by me today / tried to force webgl in settings) i decided to downgrade it to previous version... and i cant use my old profile - even if i chose it in profile manager after restart i got warning about using an older version of FF and i can onlu quit or create new profile... what i can do ?

I use Manjaro Linux. Since i cant use webgl in the last version of FF (updated by me today / tried to force webgl in settings) i decided to downgrade it to previous version... and i cant use my old profile - even if i chose it in profile manager after restart i got warning about using an older version of FF and i can onlu quit or create new profile... what i can do ?

Izabrano rješenje

Already found solution for this... 1) For problems with using profile at older versions run firefox with -allow-downgrade. Thats all. 2) For problems with WebGL: Open about:config and set security.sandbox.content.read_path_whitelist to /sys/.

EOT

Pročitajte ovaj odgovor sa objašnjenjem 👍 0

All Replies (2)

more options

Unfortunately your profile has been updated to work with the newest version you had installed and can't work backwards, so you'll have to create a new one.

more options

Odabrano rješenje

Already found solution for this... 1) For problems with using profile at older versions run firefox with -allow-downgrade. Thats all. 2) For problems with WebGL: Open about:config and set security.sandbox.content.read_path_whitelist to /sys/.

EOT