Addons and Extensions Pages Blank after Reset; Extensions Not Showing in Search
I'm running FF 56.0b9 (64 bit) on Windows 10. It got really slow and laggy. Like multiple seconds of latency after I type to see the letters and tabbing fields. I cleared the cache hoping it would fix but still the same.
Then I couldn't comment on Youtube or open the drop down under my Youtube account icon. It would just show a blank section with a spinning wheel. So I gave up and decided to reset FF.
After I reset FF, I went to look for my extensions and addons to reinstall them and when I click on the Addons puzzle piece icon in FF, it opens up a new tab with a blank page (see attached) with the addons menu items on the left (Addons, Extensions, Appearance, Plugins, Services) and a white main page with a grey box that says What are addons? After explaining what they are, at the bottom it says "when you are connected to the internet, this pane will feature the best addons for you to try out."
When I click the Extensions menu item on the left, it takes me to another blank page (screenshot attached) that says "You don't have any addons of this type installed" with a button that says "Learn more about addons". When I click that, it takes me to the previous page.
The search box in the upper right yields no results no matter what I type in there.
How can I get to that page that shows all the different addons and extensions where I can search for the ones that I need so I can install them?
You appear to be using a copy of Firefox from 2017 and there have been many security and stability updates since then.
Please can you try again using the latest version of Firefox?
Yes, I know it's a very old version. The reason I use it is so I can use a particular extension (Tabs Mix Plus) that allows me to stack rows of open tabs that won't work on newer versions. I really need to use this version. I have a lot of open tabs. I don't like horizontal scrolling to get to tabs.