If you want to self-sign the extension, you can do so by following the steps here. This may make it easier to keep Firefox loading the extension so you don't need to add it via the about:debugging page. Updating the .gitignore so that if you're working from the repo and choose to do this, you don't include the signing files that are generated in the /extension/ folder.
If you want to self-sign the extension, you can do so by following the steps here. This may make it easier to keep Firefox loading the extension so you don't need to add it via the about:debugging page. Updating the .gitignore so that if you're working from the repo and choose to do this, you don't include the signing files that are generated in the /extension/ folder.