01

Chrome · Brave · Arc

Load an unpacked extension

  1. Download the Chrome package and unzip it.
  2. Open chrome://extensions.
  3. Enable Developer mode.
  4. Choose Load unpacked and select the unzipped folder.
02

Microsoft Edge

Load the local Edge build

  1. Download the Edge package and unzip it.
  2. Open edge://extensions.
  3. Enable Developer mode.
  4. Choose Load unpacked and select the unzipped folder.
03

Mozilla Firefox

Run a temporary add-on

  1. Download the Firefox package and unzip it.
  2. Open about:debugging#/runtime/this-firefox.
  3. Choose Load Temporary Add-on.
  4. Select manifest.json. Firefox removes temporary add-ons after restart; permanent installation requires Mozilla signing.
04

Safari · macOS

Build with your Apple team

  1. Download the Safari Xcode project and unzip it.
  2. Open Postory.xcodeproj in Xcode.
  3. Select your Apple Developer signing team for the app and extension targets.
  4. Run the macOS app, enable Postory in Safari Settings → Extensions, then allow access to X.