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!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Cannot install add ons

eran555
eran555
more options

Trying to install add-ons, I get "An unexpected error occurred during installation."

I checked the about:policies#active and InstallAddonsPermission is false.

The Firefox is portable and I was able to install add-ons in the past.

Trying to install add-ons, I get "An unexpected error occurred during installation." I checked the about:policies#active and InstallAddonsPermission is false. The Firefox is portable and I was able to install add-ons in the past.

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

eran555 said
It is a managed computer, and this is why I use the portable version. I was under the impression that the portable version is not subjected to a policy since the software is not being installed.

You can get support on Portable Firefox here:

https://portableapps.com/forums/support/firefox_portable

  1. 1
  2. 2