Another issue I found with the context menu is how often extensions add unnecessary actions that you can do nothing about except opening the browser toolbox and hiding them the ugly way. I don't think it's reasonable to expect every extension to add their own, unique settings for disabling context menu actions. I'd much rather we have e.g. a universal, Firefox provided UI to edit and disable context menu entries.
The latest culprit is, funnily enough, Firefox Relay, which adds a "Manage all masks" action... I'm never going to click that. It opens your relay account page. That's it. We have several other ways to do that. I don't need the option to manage all masks when I'm copying an image, or translating text, or opening a link in another window, etc. There are probably users that want it, but I'm not them; it's just clutter.
Earlier this year the right click option on tab menus added this annoying 'load tab to right' option above the 'reload tab' button. I don't want this nuisance!
some right click menus are waaaay to big and long specially if you click on something with an image or a file its hilerious it takes 40% of my screen with so much unnecessary stuff and entries you cant even use at the moment and this is stupid. just show my what is possible and hold it clean and short.