"Sorry, we couldn't load your WebExtension."

Hey, I’m trying to update my extension and it keeps giving me the below error. There doesn’t seem to be a specific error that i can fix just keeps giving this general error, anyone know if this is a known issue?

Your add-on failed validation with 1 error.

  • Sorry, we couldn’t load your WebExtension

Did you zipped the whole folder or just the files - including the manifest.json file?

More info:

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I’m pretty sure the method of zipping is not the issue as i’ve submitted all my versions so far using it. (Plus i can upload my zip in about:debugging and it works just fine)

I opened an issue on github though, hopefully it gets looked at.

Check also Network tab, maybe it will reveal a real server response with more info.

Similar issues have been reported for Thunderbird addons store:

Hmm, i tried my own mac’s compress option to create the zip on my build and it worked… so it looks like the zipping was indeed the issue

Yeah, the addons store is somewhat picky about the zip.
From what I remember years ago, some popular zipping library from NPM was making zip archives that I could open with desktop app, but they would fail when uploading to store.
I’m now using zip-webpack-plugin which works OK.

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