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Installing extensions to the Ferefox browser

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Hello. My problem is that I can't install absolutely any browser extensions. The browser itself shows "Download failed. Please check your connection. " Through the store ADD-ons informs about blocking the request to install from this site by the browser, after showing the damage downloaded from the site. What is this nonsense? So absolutely with every extension, on the screenshots of the supplement Ghostery.

Hello. My problem is that I can't install absolutely any browser extensions. The browser itself shows "Download failed. Please check your connection. " Through the store ADD-ons informs about blocking the request to install from this site by the browser, after showing the damage downloaded from the site. What is this nonsense? So absolutely with every extension, on the screenshots of the supplement Ghostery.

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Mozilla has rolled-out a fix for this. The fix will be automatically applied in the background within the next few hours, you don’t need to take active steps.

In order to be able to provide this fix on short notice, they are using the Studies system. You can check if you have studies enabled

  1. Go to [=] > Options > Privacy & Security.
  2. Make sure Allow Firefox to install and run studies is check marked.

I you had it disabled, you can disable studies again after your add-ons have been re-enabled.

They are working on a general fix that doesn't need to rely on this and will keep you updated.

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I tried all the options to solve this problem before writing here. Nothing helped. That too.