Vim Keys for Firefox by Frederik

Navigate Firefox like a pro with Vim-style keyboard shortcuts. This lightweight extension brings the power of Vim keybindings to your browser, letting you browse entirely with your keyboard.
Key Features:

Smooth scrolling with hjkl keys (up, down, left, right)
Link hints mode - press 'f' to show hints, type letters to click any link
Fast tab switching with Shift+J and Shift+K (works on all Firefox pages)
Browser history navigation with Shift+H (back) and Shift+L (forward)
Global keyboard shortcuts that work even on about:config and other internal Firefox pages
Automatic popup dismissal for common annoyances like "Sign in to Google" prompts
Smart detection - automatically disabled in text fields, re-enable with Escape

Privacy First:
This extension collects NO data. Everything runs locally in your browser.
Keybindings:

j/k - scroll down/up
h/l - scroll left/right
d/u - half-page scroll
f - link hints mode
Shift+J/K - switch tabs (works everywhere)
Ctrl+Shift+J/K - alternative tab switching
Shift+H/L - back/forward in history
r - reload page
i - insert mode
Esc - return to normal mode

Perfect for keyboard enthusiasts, developers, and anyone who wants to browse faster without touching the mouse!