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(Archived) Thunderbird Web Clipper Add-on won't update


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I have a persistent update error for the Web Clipper Add-on in Thunderbird (

The file downloads and each time an error dialog says this:

Thunderbird could not install the file at


because: Invalid file hash (possible download corruption)

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Something may be disrupting access to this URL.

Could you try downloading this URL from a web browser (e.g. IE or Safari) on the same computer to a local file on your computer, and then install it manually from the Thunderbird Add-Ons menu?

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