I am getting "error while downloading" while trying to install add ons, after having reinstalled, the add ons page now appears very basic with broken images but the navigation bar(ADD-Ons, Extensions, Plugins etc.) is'nt affected. What should I do?(And what is wrong?)

Any idea?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References support.mozilla.org/en-US/questions/992938

Hand Drawn animation