Do you mean the Get Extensions tab on the about:addons page (Firefox/Tools > Add-ons)?

It may take a while to get that page appearing, especially if you have a lot of extensions installed (a full list of installed extensions is send to the server to avoid seeing extensions that you already have).

• https://services.addons.mozilla.org/en-US/firefox/discovery/pane/10.0.2/WINNT

hmm not quit, when I click tools, then add ons, the new page loads for hours and nothing happens. Thanks for the reply btw

You can try to open the link that I posted above to get a page with suggestions.

• https://services.addons.mozilla.org/en-US/firefox/discovery/pane/10.0.2/WINNT

You can open other tabs (Appearance, Extensions, Plugins) on the about:addons page if you're not after new extensions, but want to check your current setup.

I dont see any extensions, those other tabs are ok, it just I can see my own ad ons.

still have the problem

The addon page would not show all of the page, nor all the buttons, and it keep on saying "loading." But i found the problem was the PitchDark theme, which otherwise is the best minimalist dark Fx theme, esp when you have about 60+ tabs open. I tried Lava fox and Dark Orange and the addon page page is back to normal. Thank God for eyes.

Second image is under PitchDark theme

Try changing your theme.