addons-server: Language packs fail to install on -dev
Possible regression from #9308 Prerequisites:
- use an unbranded release of Firefox - see here
- set the following prefs in about:config:
extensions.webapi.testing=true;xpinstall.signatures.required=false;xpinstall.signatures.dev-root=true
STR:
- Open the following language pack - https://addons-dev.allizom.org/en-US/firefox/addon/finnish-language/
- Try to install it
Actual result: Language pack doesn’t install
Expected result: Language pack can be installed
Notes:
- Not reproduced with older language packs that weren’t signed with
COSE, therefore I assumed that the new signature can be be causing the issue - see console error - If I’m submitting the same lang pack on stage, there are no installation issues
- reproduced on AMO -dev with FF65, Win10x64
Console error:

About this issue
- Original URL
- State: closed
- Created 5 years ago
- Comments: 19 (7 by maintainers)
I resigned the add-on that I uploaded for completeness.
I’m going to close this as fixed given the recent fixes and verifications.
Awesome, thanks a lot @g-k! I’ll test this in a bit, I think @AlexandraMoga will do so as well to verify.
Thanks a lot, @g-k, let me know if I can be of any help