Debug

Please clone or download the code, then load the code in about:debugging#/runtime/this-firefox (input in address bar).

No need to uninstall regular version, the temporarily loaded addon will just override the current version temporarily, the only problem is that the configuration of Scrapbee maybe lost sometimes, so export configuration as a backup.

Click on "Load Temporary Add-on", and choose any of the source code files cloned/downloaded.

Then you can try the add-on from code temporarily.

Also, by click on the button "inspect", you can find more debug info for reference.

Try the temporarily loaded addon just like regular version with new features, no other difference. Just keep in mind it's testing version. Test it with testing data or data already backed up.

Usually, you need not reinstall backend program, except new version needed.

Just remove temporary addon or restart firefox whenever you want to back.