I think it takes up too much screen real estate, and doesn’t add anything to the view.
I think there is an option if you right click the toolbar and the go to customize toolbar
https://www.geeksforgeeks.org/techtips/customize-toolbar-firefox/
Well it’s not just Firefox, it’s all windows.
Idk about Mint in particular. There’s a way to do this in most de/wm. I would start in the system settings where you can choose light/dark themes. Then just go top to bottom in the system settings.
Sorry I couldn’t help more
Edit: If you don’t go through settings systematically like this often, it’s good practice. You always find things you’ll use later.
Search for ‘Extensions’ in the menu and download Cinnamon Maximus
Right click on tab bar > click on last entry there (forgot how it’s called) and finally uncheck second entry from bottom left.
Switch to dwm. https://dwm.suckless.org/
Ah yes, the ever growing and maintained X11 window system.
The future of security and standardization, with the mostly used feature of transmitting GUI assets over a network.
And to top it all off - the most documented code project, with the users facing easy customization options, that requires almost no programming language knowledge - and the easily compatible feature matrix, with allways up to date patch files.
