Incorrect mimetype on XPI download link.

Question

Lately, when I've been downloading the latest beta Firefox extension, I've noticed that Firefox doesn't automatically prompt to install it. At first I thought it was an issue with Firefox, so I posted a question in the Firefox support forum. Their response was that the mimetype of the download is "binary/octet-stream" instead of "application/x-xpinstall".

1Password Version: Not Provided
Extension Version: Not Provided
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Browser: Firefox

1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Browser: Firefox

1p_dave · Answer

Hello fishnet37222! 👋

Thank you for reaching out! I've brought this to the team internally and I'll report back as soon as I have more information.

Are you able to link to your question on the Firefox support forum? I can send that to the team as well. 🙂

-Dave

fishnet37222 · Answer

Dave,

Thanks for following up.

Here's the link you requested:  https://support.mozilla.org/en-US/questions/1460204

Their response doesn't mention the correct type.  I got that from this page in the Firefox Extension Workshop.

1p_dave · Answer

fishnet37222

Thank you for those links! I've opened an internal issue with our release team internally and they plan to look into this for the future. While I can't make any promises, I think that this would be a helpful change.

I appreciate you flagging this to us. 🙂

-Dave

ref: build-release/team-issues/-/issues/615

1p_dave · Answer

fishnet37222

Thanks for your patience. The team has investigated and found that the MIME type is already set correctly. While I did see the same behaviour that you reported yesterday, I'm no longer able to reproduce it today. When I download the beta version of the extension from this page I see the following:

and then:

Can you test again to see if you see different behaviour? If you do still see the same behaviour can you check if you've blocked our website from installing add-ons in the past: