Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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.

When I try to add ad-ons I get Sorry, you need a Mozilla-based browser (such as Firefox) to install a search plugin

  • 1 reply
  • 37 have this problem
  • 1 view
  • Last reply by cor-el

Soulsin
Soulsin
more options

When I try to download ad ons I get an error message that says Sorry, you need a Mozilla-based browser (such as Firefox) to install a search plugin. I have already downloaded and have firefox as my default browser, what am I doing wrong?

When I try to download ad ons I get an error message that says Sorry, you need a Mozilla-based browser (such as Firefox) to install a search plugin. I have already downloaded and have firefox as my default browser, what am I doing wrong?

Chosen solution

See [/questions/919992]

Start Firefox in Use Troubleshoot Mode in Firefox to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).

Read this answer in context 👍 1

All Replies (1)

cor-el
cor-el
  • Moderator
more options

Chosen Solution

See [/questions/919992]

Start Firefox in Use Troubleshoot Mode in Firefox to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).