Quite different, but... you could try ShortcutKey2URL [1]. Then you could, for example, use Ctrl+Q followed by: Y for YCombinator, F for Facebook, and so fort

Quite different, but... you could try ShortcutKey2URL [1]. Then you could, for example, use Ctrl+Q followed by: Y for YCombinator, F for Facebook, and so forth. Pressing Ctrl+Q not only switches into that "trigger once mode", it also displays the list of available shortcuts. [1] https://addons.mozilla.org/en-US/firefox/addon/ShortcutKey2URL/ https://addons.mozilla.org/en-US/firefox/addon/ShortcutKey2U...