C-x C-f does reliably open a new tab.

But what I most wanted was Emacs key bindings for edit fields (C-a, C-e, C-y, etc.) and they are completely missing so it's not or me

Does not work on Firefox 71.0.

C-* keybindings does not work on linux.
Firefox Developer Edition 68.0b7

Holy Emacs, Evil Vim

But It doesn't work, doesn't work!

Do you still maintain this extension? I think you should add options in it to set other different keys as Control- Key and Meta- Key so it could work on linux and windows.

Or I think I should just change Vim Vixen's default config to Emacs keybinding.
Spacevim rather than Spacemacs ∠( ᐛ 」∠)＿