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Published 20 hours ago • verified publisher icon cleidigh

[Tips] Solution: 'This add-on could not be installed because it appears to be corrupt'

Open kiki-ja opened this issue 2 years ago • 0 comments

This is a solution to a case where the message 'This add-on could not be installed because it appears to be corrupt'.

Error Message

Q. Why am I getting this message? A. It is because the download procedure is incorrect. 　　GitHub will not download correctly with a right mouse click and 'Save Link As' or 'Save Link'. 　　The reason for this is that the downloaded file name is correct, but the size and the contents 　　is different. 　　This is a GitHub specification.

Q. What is the correct way to download? A. Left mouse click on the link string to go to the download page. 　　Then click 'Download button' to download.

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Screenshots are from Windows 10 + Firefox 117.0. As of September 8, 2023.

Please refer to the Support Guide below for add-on installation instructions.

'Installing an Add-on in Thunderbird - Thunderbird Support' https://support.mozilla.org/kb/installing-addon-thunderbird

@kiki-ja

kiki-ja avatar Dec 23 '22 15:12 kiki-ja