Each time I used Troubleshoot Mode, I had to set up Firefox as if it were a brand new app. I find it hard to believe there isn't an app or perhaps a way to backup extensions. I have some extensions that take a long time to configure with multiple inputs and links. Firefox has been around for decades. I am not trying to invent the wheel. I can't be the only one who has this issue and am surprised nobody came up with a solution. In fact, I am disappointed that Firefox's developers have ignored this hiccup.

It could work if you use Sync to sync the add-ons.

• https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer
• https://support.mozilla.org/en-US/kb/how-do-i-choose-what-types-information-sync-firefox

You can also backup the extensions folder in the Firefox profile folder or recover this folder from the "Old Firefox Data" folder on the desktop.

• https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile
• https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

When I find an add-on I like, I copy its web address to a folder on my system. This way, if I lose it, easy to reinstall.