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Download failed. Please check your connection.

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  • 2 have this problem
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  • Last reply by McCoy

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Ok it appears that I my previous add-ons have been removed and I cannot re-install them ?

I get the following message every time I try to add any add-on ?????

"Download failed. Please check your connection"

Ok it appears that I my previous add-ons have been removed and I cannot re-install them ? I get the following message every time I try to add any add-on ????? "Download failed. Please check your connection"

All Replies (1)

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Hello whatagain,

This is (or maybe I should say : was ) caused by an unforeseen technical problem - sorry for the inconvenience ….

Please see :

https://support.mozilla.org/en-US/kb/add-ons-failing-install-firefox

https://discourse.mozilla.org/t/certificate-issue-causing-add-ons-to-be-disabled-or-fail-to-install/39047/