Ah okay yeah I set it to true, default was false. Error is connection failure (same error as for the add-ons)
You're not behind a firewall that might be blocking it are you? E.g. being in China?
FF shows the fix add-on as being installed with the standard pop-up notifications in the menu bar. However, in the browser console, I only see the error msgs that I've listed in my other posts.
???
If you installed the xpi you shouldn't need to do anything in the browser console, and your addons should have come back. Obviously the latter didn't happen.
Chances are a connection failure in the browser console is unrelated, the browser console is basically constantly spewing error messages, you should just ignore them unless they are in response to something you did.
All I can really suggest over the internet is to try reinstalling your addons - that might work - in which case I would assume they just got uninstalled somehow. If it doesn't I'm not sure what to suggest, and I can't realistically debug something too complex over HN comments. You might just have to wait for mozilla to publish an update to the browser that fixes this properly.
I do want to emphasize that I'm just some dude on the internet being helpful by the way, not associated with Mozilla or anything.
Edit: Just saw this error message you also posted: """WebExtensions: failed to add new intermediate certificate:"""
That sounds like an issue that happened when installing the .xpi? Did it give any other related debugging information?
I.e. something like
- I open the browser console
- I click the .xpi link
- The following appears in the browser console immediately after clicking the link:
WebExtensions: new intermediate certificate added api.js:15
WebExtensions: signatures re-verified api.js:23
- If I try to install an addon from addons.mozilla.org I get <this message about the addon signature verification failing> in the browser console.
So,
I click the link. I click "Add", and Mozilla says addon could not be downloaded due to connection failure. Nothing appears in browser console.
Downloading an addon gives me "Download failed. Please check your connection." on the Addons site. In console, I get:
Events to handle the installation initialized. BigInteger.js:27
[GA: OFF] sendEvent {"hitType":"event","eventCategory":"AMO Addon Installs Download Failed","eventAction":"addon","eventLabel":"uBlock Origin"} BigInteger.js:27
Error:
Edit: That studies image looks like it has already been installed, which is weird if your extensions aren't back...
As for the studies image, that's only half of the fix according to the blog post [1], mine is only verification-timestamp, not signing-intermediate-bug.
[1]: https://blog.mozilla.org/addons/2019/05/04/update-regarding-...
You're right about the image, that's weird, I can't think of any reason why the verification-timestamp one would be necessary.