Installation aborted because the add-on appears to be corrupt.
All attempts to install any addon now result in the following alert: Installation aborted because the add-on appears to be corrupt.
- Shockwave Flash 32.0 r0
- Felhasználói ügynök: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0
Could you test whether Firefox can successfully download the extension file and save it to disk? Right-click the blue "Add to Firefox" button and Save Link As to save the file. Does it save successfully?
(Note: .xpi files are .zip archives, in case you wanted to look inside.)
That's a negative - Shows download attempt failed.
Hmm, thank you for testing that.
Extension downloads redirect from one server to another. For example, this is the first and second links for uBlock Origin. Do either work for you?
Some users seem to have difficulty accessing servers whose names include CDN (a common abbreviation for content distribution network). Can you download the file in any of your other browsers?
Both work, and now so does everything else. It seems the problem solved itself. Could this have been a temporary issue with the source servers?
The server was working for me, but perhaps because it is a content distribution network, we are hitting different regional data centers.