Cannot install any add-on on my Firefox
Dear all, I cannot install any upload-on as Firefox, presents me (rather "+ upload to Firefox") a button: "Most effective with Firefox - get Firefox now". I've Firefox model eighty.zero.1 (sixty four-bit) set up. Any concept how to get this looked after out? Might de- and re-set up of Firefox work? Thanks on advance. Regards.
Modified
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https://support.mozilla.org/en-US/kb/update-firefox-latest-version?cache=no Did you update Firefox to the latest version?
Version 85.0, first offered to Release channel users on January 26, 2021