I'm not understanding how that relates to the fact that the only thing stopping users from installing their XUL extensions on FF57 was a software switch they weren't allowed to touch without editing and compiling from source.
No editing or compilation needed. You just needed to disable signature checks (xpinstall.signatures.required) and enable extension experiments (extensions.experiments.enabled) in a developer edition version (or nightly) version of the browser.
I feel like if it was that simple, someone would have written instructions somewhere at the time. I remember having to set xpinstall.signatures.required before FF 57. I am not sure about extensions.expirements.enabled.
Unfortunately, I'm now at a point where I can't be bothered constantly fucking around with my setup and have resigned myself to just accepting whatever Mozilla wants to shove down my throat.
From what I can tell, the community has forked pentadactyl[0] and are using it on Palemoon[1]. I'm guessing if it could still run on Firefox today, they would do that instead of using Palemoon (but I could be wrong). Anyway, I still hate that they killed what made Firefox unique. Trying to beat Chrome at it's own game seems like a pointless battle.
