ZIM file extension is .txt when downloading the ZIM files in Firefox application.

[MohitMaliFtechiz]

The ZIM file extension is .txt when downloading the ZIM files in the Firefox application. However, it is correctly downloading in other browsers like Chrome, and Opera.

FireFox	Chrome	Opera

I am using the latest version of the firefox.

However, the downloading is working fine in the Firefox's Ubuntu app.

[rgaudin]

Thank you @MohitMaliFtechiz ; indeed three mirrors are not sending Content-Type headers and two are sending a plain text one for ZIM files.

I have contacted the mirror and am awaiting their response and/or fixes.

I am also submitting a PR to have all this checks daily so we can act quickly should any or the mirrors' configuration changes.

[rgaudin]

Mirror	Issue	Fixed
mirror-sites-in.mblibrary.info	Missing header	❌
mirror-sites-fr.mblibrary.info	Missing header	❌
mirror-sites-ca.mblibrary.info	Missing header	❌
md.mirrors.hacktegic.com	Missing header	✅
mirrors.dotsrc.org	sends text/plain	❌
ftp.nluug.nl	sends text/plain; charset=UTF-8	❌