When I try to add ad - ons I get sorry, you need a browser based on Mozilla (like Firefox) to install a search plugin

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

See [919992/questions/919992]

Start Firefox in Firefox to solve the issues in Safe Mode to check if one of the extensions or if hardware acceleration is the cause of the problem (switch to the DEFAULT theme: Firefox/tools > Modules > appearance/themes).

Tags: Firefox

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