Komunitné fórum Firefox

I like Ctrl+Shift+B to open the Library (Manage Bookmarks/Show All Bookmarks). For maybe two years I was using this, but it stopped working in 117:

https://reddit.com/r/firefox/comments/kilmm2/restore_ctrlshiftb_library_by_setting_configjs/

Dorando keyconfig isn't current. Shortkeys won't even install and probably won't do what I want anyway. AutoHotkey will do it, but I'd rather not use it for this.

Does anyone know how I can get a config.js to open the Library when I hit Ctrl+Shift+B?

I use an translator extension for firefox for russian so I do not need this integrated tool and it's annoying to see it everytime I open a russian page. Please help me, I don't know what the source is of this translator but I can tell it's not from an extensions as I deleted every extension and tried, not worked.

I want to navigate on search results using the keyboard. I could use tab but it suggests all interactive elements such as news, images, books, videos, search settings and etc one by one. I want to press something and make active first result, then second. If such hotkeys are not provided, maybe there are any extensions with similar functionality?