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No add-ons

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I read on forum about that bug with add-on and to fix this i need to participate in studies. But I can't! I just can't activate this function in settings. I check this box and then it says there is no available studies. I need my add-ons... What am I doing wrong? :(

I read on forum about that bug with add-on and to fix this i need to participate in studies. But I can't! I just can't activate this function in settings. I check this box and then it says there is no available studies. I need my add-ons... What am I doing wrong? :(

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Downloading and installing this extension has been working for me.

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TyDraniu said

Downloading and installing this extension has been working for me.

That worked for me, too! But some users haven't been able to install that "hotfix-update" XPI due to their AV application / security application blocking that URL and not saying anything.