It looks close, but details and behavior are a bit off. For example:
- Firefox context menu does not respect system's dark mode
- Different horizontal and vertical margins between items
- Different font rendering (e.g. text looks bolder)
- Different right caret icon
For behavior difference, for example: when navigating sub-menu items, macOS uses cursor velocity and cursor direction to determine if user is trying to go to submenu and immediately dismiss it if user is not. Firefox context menu uses a delay to archive similar effect. (To test this: open a sub-menu in a context menu, then move the cursor up. macOS native menu dismiss immediately, where old Firefox has a small delay before it is dismissed.)
40x the energy usage vs Safari. It's atrocious. Laptop gets to silly high temps, has to be bad for battery life... But I'm sure glad we have some new popup confirmation windows. Cool.
EDIT: I use FF on my Mac as my primary browser. Just so frustrated at how little fucks they give about performance and battery usage.
BUT, I really do like Firefox's ability to clear history and cookies on close. I like the extensions for Firefox... Safari doesn't really have any extensions... not really anyway. Things work funky, if they work at all. I think I run 40+ Firefox extensions for work.
Everything from ClearURLs, to Wappalizer, to Reddit Shine. Nothing works on Safari.
Firefox is great, except they don't give a flying poo about battery life or heat issues on Macs. Really frustrating given we're all mobile these days.
https://www.codeproject.com/Tips/1035362/Simple-Window-With-Assembly