JekylHyde said

"their"? but the problem is with any extension...

I repeat : " Your screenshot shows only uBlock Origin ...... "

Did you remove the other extensions  ? And if so : why  ?

McCoy said

JekylHyde said

"their"? but the problem is with any extension...

I repeat : " Your screenshot shows only uBlock Origin ...... "

Did you remove the other extensions  ? And if so : why  ?

again - this is a new installation. i had no extensions. i tried to install several & nothing worked - so i removed them. why keeping them?

JekylHyde said

again - this is a new installation. i had no extensions. i tried to install several & nothing worked - so i removed them. why keeping them?

I should have realized that you re-installed Firefox, tried to install extensions, which didn't work, so you removed them. You tried again with uBlock Origin - you kept that one, but it doesn't work. You didn't contact uBlockOrigin's support, as this happens with every add-on that you try to install, so why bother. Makes sense to me ....

For the add-ons in general, would you take a look at this article please :

https://support.mozilla.org/en-US/kb/unable-install-add-ons-extensions-or-themes

Does this help  ?

no :(

JekylHyde said

no :(

Bummer  !

The only thing I can think of right now is to ask you :

Did you download Firefox from here :

https://www.mozilla.org/firefox/all/  ?

i think that from here https://www.mozilla.org/en-US/firefox/new/

i uninstalled firefox then downloaded the 64bit from your link firefox told me that i could do a refresh i accepted i installed ublock origin & it works now! :) thanks

Finally  ! 'Was about time, eh  ?

Well done  !

yup :) thanks

I have the same problem. I have 5 add-ons installed and none of them works. Windows 10 freshly after installation, firefox the same, profile newly created. FF version 62.0.2 64bit

I deleted the profile and refreshed FF. Next I reinstalled all add-ons and ... works.