Installing a Firefox plugin in browser for testing

  1. Click on the right most icon in the firefox tool bar(3 lines)
  2. In the popup, click "More Tools"
    More Tools
  3. Click "Remote Debugging"
    Remote Debugging

    OR

  4. Alternately you may go directly to about:debugging
  5. choose "This Firefox"
    This Firefox
  6. Click "Load Remporary Extensions" button
    Load Remporary Extensions
  7. Enter/Choose folder of plugin
  8. Choose maifest.json
  9. The plugin will be shown as loaded
    Plugin Loaded

    Update Settings of plugins with settings

  10. Click on the right most icon in the firefox tool bar(3 lines)
  11. In the popup, click "Addons and Themes"
    Addons and Themes

    OR

  12. Alternatively you may go directly to about:addons
  13. Click on your custom plugin and
    Your Custom Plugin
  14. Click on "Options" tab
    Options of Your Custom Plugin