Getting following message when attempting to install AdBlock Plus: Download failed. Please check your connection. The connection is fine so I attempted to download from publishers site ( https://adblockplus.org/en/ ) and I get the following: adblockplus.org The add-on downloaded from this site cou…

Nothing is working; its not limited to AdBlock; this sucks!

This situation is quite dire, however the team released an announcement saying they are working to fix it.

Here are some updates from the Mozilla Add-ons Twitter: https://twitter.com/mozamo/status/1124513193030586368

Thanks achernoch. Didn’t know the issues was widespread. Following Mozilla Add-ons.

If you can, pleae try this and see if it works: Install ESR, developer, or nightly edition open about:config change xpinstall.signatures.required to “false” you can now re enable all extensions Worked for me, my version is the 67.0b16 (64-bit) Developer Edition. Original post: x.com Good…

Hi @fredw1604 , We understand your problem. This has been caused by a certificate issue. Firefox Team is currently working on a fix and will be providing updates on this thread: Certificate issue causing add-ons to be disabled or fail to install .

Most everything gets the same download error message. It’s not just adblock, which has been a staple for years. Try some others and see what happens.

There will be a lot of somewhat knowledgeable folks that just go with the developer edition…to HECK with the brains at the helm who have the addon adblock disabled. Fools have disabled the best addon they have.

It feels so sad to know that this issue is still not fixed… :mask::mask::mask::mask:

AdBlock Plus will not install

Add-ons Add-on Support

achernoch May 4, 2019, 4:01am 2

There is an extension problem that a large number of users are experiencing that’s being caused by a certificate expiring. More info in this thread: Themes no longer working!?

Topic		Replies	Views
Download failed. Please check your connection Add-on Support	17	17924	November 6, 2020
Ad blocker not working and won't let you download a different one Add-ons	1	2760	May 4, 2019
Ublock stopped working addons.mozilla.org	6	7337	May 4, 2019
Suddenly every single addon is disabled Add-on Support	29	2915	May 27, 2019
Add-On downloads aren't working Add-on Support	8	1561	June 13, 2019

AdBlock Plus will not install

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