Mozilla just protected their browser from unsigned addons. If you are using an unsigned addon, it will suddenly not work. There is no way around it. All addon developers will have to use the official Mozilla process for signing their work.
Now, this is a great idea. Really. I don’t want some useful addon to start making unnoticed changes to my system settings or injecting ads.
However, for the nonce, it is irritating because ABSOLUTELY NONE of the addons I use are signed. Language libraries, canvas blockers, ad blockers, Gmail denhancements … none of it.
Of course, I stumbled upon this because I started to play a YouTube video and actually saw an ad for the first time in years. I mean, WTF?
This is a huge issue, and there is no way around it aside from using nightly/dev builds of the browser where you can turn signing off using xpinstall.signatures.required in about:config. The community is a bit upset, as you can well imagine.
Please share any fixes you come across and/or decent addons you find that work. The ones I’m mostly looking for are:
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