Which browsers does Shortkeys support and how do I install it?

Updated

Shortkeys supports Chrome and Firefox. You install it as a browser extension from each browser's official add-on store, then configure shortcuts on the extension's settings page. The extension is free and open source, and the site states it is "free & open source, forever."

Supported browsers

Browser Support Notes
Chrome Yes Site references 200,000+ Chrome users and Chrome cloud sync via your Google account
Firefox Yes Listed alongside Chrome on the site with an install option

The site presents Chrome and Firefox as the two supported browsers. No other browsers are named in the available material, so treat Chrome and Firefox as the confirmed options.

How to install

The site describes a three-step flow: Install → Configure → Execute.

  1. Install — Add Shortkeys to your browser from its store listing. The site's install path points to the browser extension (the settings page lives at a chrome-extension://shortkeys/options.html address in Chrome).
  2. Configure — Open the extension's settings page. Pick one of the 100+ built-in actions or write custom JavaScript, then record your key combination.
  3. Execute — Press your keys in the browser and the assigned action runs.

Recording a shortcut

The settings page includes a Shortcut Recorder: click Record, then press your key combo. It supports multi-key sequences, such as Vim's g g.

What you can set up after installing

  • 100+ built-in actions across categories including scrolling (12 actions), navigation (18), and tabs (29), plus zoom, bookmarks, downloads, and video controls.
  • Custom JavaScript — run any JS from a shortcut, edited in a CodeMirror editor with syntax highlighting and the One Dark theme.
  • Shortcut Packs — one-click installs of curated collections like Vim, YouTube, and GitHub.
  • Groups — organize shortcuts into collapsible groups you can enable, disable, or share as a unit.
  • Macros — chain multiple actions into one shortcut, with optional delays between steps.
  • Command Palette — click the extension icon for a searchable list of your active shortcuts.

Common points to check

  • Cloud sync is Chrome-specific in the available material. The site says shortcuts sync across Chrome instances via your Google account. No equivalent sync mechanism is described for Firefox.
  • Settings live in the extension, not the browser's own shortcut editor. Chrome's built-in chrome://extensions/shortcuts page is a separate thing; Shortkeys has its own options page.
  • Dark mode follows your system theme on the settings page automatically.

If you use both Chrome and Firefox, you can install Shortkeys in each, but expect to configure shortcuts separately unless you rely on the sharing/group features to move them across.