I don’t store passwords in Firefox, nor do I use the ”Save page as”, I have never used the ”Report broken site” feature, and never activated ”Troubleshooting Mode”. I have never needed to configure network settings in my browser, and so on… As far as this discussion is concerned all these are bloat because they are not used. Seems like a strange yardstick to keep, when it cannot be properly applied, no?
I think it'd be cool to be able to remove those from the UI if you're not using them, yeah. For me personally, I find the Firefox UI is pretty streamlined, so suddenly seeing new right-click menu elements that I'm not going to use was a bit jarring and I'm glad there's a setting to remove them.
It's clutter for a feature that I'm not going to use. I'm not upset it's there for those who want it, but it's also nice to be able to get rid of it.