The Mozilla team has announced, yet again, that it will be delaying the implementation of mandatory add-on signing in Firefox.
Add-on signing is the process through which Mozilla reviews each add-on and gives it its official seal of approval.
According to the new timeline, starting with Firefox 46, users won't be able to use unsigned add-ons anymore.
Mozilla devs
introduced this "feature" in Firefox 41 as an optional setting and was set to become live with Firefox 42.
With every new version of Firefox, the feature got pushed back, and in Firefox 43, it became semi-official when add-on signing started being enforced.
Currently, by tweaking
an option in the about:config Firefox settings page, users can still disable this feature and install unsigned add-ons.
The Firefox team planned to remove this workaround with Firefox 44 and prevent users from installing unsigned add-ons altogether.