The fact that unsigned extensions worked on Ubuntu release (or any Linux release) was a bug. It was fixed here:
https://bugzilla.mozilla.org/show_bug.cgi?id=1712633
If you want to use unsigned extensions, you'll need to use developer edition, nightly, or ESR.
The fact that unsigned extensions worked on Ubuntu release (or any Linux release) was a bug. It was fixed here:
https:/ /bugzilla. mozilla. org/show_ bug.cgi? id=1712633
If you want to use unsigned extensions, you'll need to use developer edition, nightly, or ESR.