I was quite impressed when I needed to modify some requests on the fly and this was the only browser extension that let me do more than just add/remove headers.

I was quite impressed when I needed to modify some requests on the fly and this was the only browser extension that let me do more than just add/remove headers. Actually using it, however, I was completely lost. The way groups work was completely unintuitive and it took me way too long to figure out how to even enable a rule. I ended up writing an ad-hoc extension because it was easier than figuring out a whole new tool. Still, it looks like a really powerful tool and a lot of people on my team swear by it, so congrats!