/install-webextension

How to manually install a webextension

Chrome

  1. Unzip the downloaded file.
  2. Activate the developer mode under your extensions settings to be able to load the extension.
  3. Load the extracted extension folder or the manifest.json file. load-in-chrome

Edge

  1. Unzip the downloaded file.
  2. Activate the developer mode under your extensions settings to be able to load the extension.
  3. Load the extracted extension folder or the manifest.json file. load-in-edge

https://docs.microsoft.com/en-us/microsoft-edge/extensions-chromium/getting-started/extension-sideloading

Firefox

  1. Go to about:config (enter it into address bar).
  2. Set xpinstall.signatures.required to false.
  3. Go to about:addons.
  4. Drag & drop the extension zip file or click on the cog & choose install add-on from file. install-in-firefox