Hi,

This would be the best place to ask :

https://discourse.mozilla.org/c/add-ons

I now asked it there but because I'm new there I am temporary blocked until a moderator unlocks me.

JustAYoungHobbyDeveloper said

I now asked it there but because I'm new there I am temporary blocked until a moderator unlocks me.

I will flag this thread, so a moderator will see it and maybe give you some advice ..... Hang in there  !

Do you mean that you are blocked on the Add-ons forum or Add-ons website?

If there is an error with installing the extension then there is likely something wrong with the signing or with the packing. Note that this might be a problem with security software that wants to inspect the archive.

You can post a link to the file or send the link via PM to see if I can replicate this if you aren't able to ask at the discourse website.

My extension is just locally save on my hard drive. I think there is nothing wrong with the packaging beacuse I can load the plugin temporary over about:debugging with no problems. I didn't upload it anywhere and it's not signed. It's just a .zip file created with the windows explorer. When I try to install my extension normally(about:addons > install extension from file) firefox just returns the error that the plugin "seems to be corrupted". I don't think it's not the signed-problem because I changed the key xpinstall.signature.required to false.

PS: I'm blocked on https://discourse.mozilla.org because I'm new there.

You need Firefox 52 ESR to be able to use xpinstall.signature.required. Firefox 48+ releases including 57 do not support this pref.

• https://wiki.mozilla.org/Addons/Extension_Signing

Oh, OK thanks