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Firefox disabled all add-ons

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I'm using Firefox 66.0.3 on Kubuntu 18.10. Simply going to about:config and setting xpinstall.signatures.required to false instantly brought back my add-ons.
Worked for me on Android with 66.0.2.
 

Regeneration

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What's this nonsense about studies and about:config tweaks? Why can't Mozilla release a proper hotfix?

None of the workarounds solved the problem on Firefox for Windows.
 
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Ebo

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All my extentions are working again withoout having to do anything.
 

Regeneration

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The hotfix is deployed by Mozilla's background spyware system ("Allow Firefox to send technical and interaction data to Mozilla").

If you have it disabled ("Allow Firefox to install or run studies"), or for some reason it doesn't work, since it runs in the background when it wants to.

Just download the following with another browser, and install it manually (Add-ons > Settings button > Install add-on from file...)

https://storage.googleapis.com/moz-...xpi-intermediate@mozilla.com-1.0.2-signed.xpi

Then navigate to about:config, Search for "app.update.lastUpdateTime.xpi-signature-verification", change it to 1556957497 and restart Firefox.

Source: Mozilla
 
Last edited:
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Just download the following with another browser, and install it manually (Add-ons > Settings button > Install add-on from file...)

Thank you for the research and fix, this worked in Windows.

This whole fiasco just pushed me to Brave...
If I could export the passwords saved in Firefox I would just stay on Brave. On Android is even sensibly faster.
 
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No issues noticed on my part, 66.0.3 64bit.
 

Regeneration

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Thank you for the research and fix, this worked in Windows.

This whole fiasco just pushed me to Brave...
If I could export the passwords saved in Firefox I would just stay on Brave. On Android is even sensibly faster.

Funny that you mention Brave. That's the 2nd reason to hate Mozilla.

Couple of years ago, Mozilla forced its CEO (Brendan Eich) to resign because he made a small personal donation to a political party against same-sex marriage.

People found out about the donation, made some fuss over it, so the company pushed him out and then he founded Brave.
 
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I might keep using it, I like the speed on Android.
Tested on my PC using Web Basemark 3.0 on Firefox and Brave. This episode was the kick in the ass that I needed to move to another browser.
Brave:
Brave_Basemark.PNG
Firefox:
Firefox_Basemark.PNG
 
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Regeneration

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Chromium-based browsers use DirectWrite to render text and its a bit blurry compared to GDI text rendering.
 
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Tested on my PC using Web Basemark 3.0 on Firefox and Brave. This episode was the kick in the ass that I needed to move to another browser.
I am honestly convinced by now that the cake of browser users divides by people who use Brave, and the rest who haven't heard about it yet.
I have no idea how i am ever going to use any other browser
 
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I may go back to Google Chrome if the new MS Edge using Chromium is not as good, but for now I will stick with FF. I looked at Brave but noticed that it says "In a future version of the browser, the company has proposed adopting a pay-to-surf business model."
 

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I got this too. wtf

watching a youtube cooking video and get a giant fkn ad thinking wtf. See ublock origin is gone. go to install and firefox says "Download failed. Please check your connection. "


fkn bullshit

All my addons are gone and I cant remember some.
I got this too. If you go to the options where add in and extensions are, there is a list of uninstalled ones.

This will get fixed. I’m staying with FF. I might add, by the way, it’s strange. It only happened on W8.1 rig, not W10 machine.
 
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I got this too. If you go to the options where add in and extensions are, there is a list of uninstalled ones.

This will get fixed. I’m staying with FF. I might add, by the way, it’s strange. It only happened on W8.1 rig, not W10 machine.

Using 8.1 as well all systems 5-6 systems in house affected.
 
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I'm on Firefox 60.6.1esr (64-bit), it did happen like to everyone else.

Capture.PNG


Disabled signature checking for now and it's back to "normal".
 
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Noted whenever I try to download an ad blocker it says the download file is corrupt even after resetting xpinstall.
In fact any ad blocker I try to get whether a direct add-on to the browser or a typical install scheme it does this so I'm thinking there's a "wittle" more to it all here.

Note I said thinking, not that it's actually so.
 
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The funny thing was I discovered that signing/expired certificate issue when I read Mozilla's blog (my habit, I did it on regular basis) and I checked the addons for my Firefox (66.03) and nothing was out of ordinary. I was like, really, so what is the problem, because there is nothing to see here. The moment I went back to read the blog, Firefox immediately warned me that all addons have been disabled. I checked the addons and yes, they were disabled. All of them.

I fixed the issue by installing the .xpi hotfix issued by Mozilla (the same one @Regeneration posted before) although I got it from one of my friends who got the hotfix through Studies. I disabled Firefox data collection so I could not use Studies to get the hotfix. All my addons were enabled instantly as soon as I installed that hotfix long before Mozilla issued an official update (66.04) for users who disable Firefox data collection (and Studies, since it's part of the data collection). Although it worth mentioning that xpinstall.signatures.required in all my Firefox (66.03 and 56.02) is always set to false, not sure it helped or not. Well, at least I didn't have to wait for official fix or update or enable data collection or Studies.
 
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