Do you have any pointers on effective profiling strategies of extensions on Firefox? I tried to contribute to an open source extension and ran into an issue where the "Performance" tab won't work [1]. I tried using the Firefox Profiler, but that's for the whole browser. It can work, but it gives too much noise. I love Firefox, but this put a huge damper on my willingness to work on browser extensions.

[1] -- https://bugzilla.mozilla.org/show_bug.cgi?id=1766271