I don't sync my extensions, as I use different ones for different profiles, but on nearly every profile, this is without a doubt one of the very first extensions I install on a fresh installation. It's also THE best developer add-on available for Firefox, and I strongly recommend anyone who uses GitHub regularly to install it. Feature-rich, stable, updated all the time...what's not to love?

Very useful enhancements to the Github website that make life easier.

Just the right level of tiny quality of life improvements... Love it 😍

Integrates with GitHub so seamlessly that you almost end up reporting issues with it to GitHub. Absolutely must have for active GitHub users, has tons of features to improve your productivity.