How to find extensions on your browser:

Chrome

  1. On your computer, open Chrome.
  2. At the top right, click “More tools” extensions.
  3. Make your changes: Turn on/off: Turn the extension on or off. Allow incognito: On the extension, click “Details” Turn on “Allow” in incognito. Fix corruptions: Find a corrupted extension and click “Repair“. 

https://support.google.com/chrome_webstore/answer/2664769?hl=en

Chromebook

  1. Open Chrome from your Chromebook.
  2. Tap the three-dot overflow menu in the top right-hand corner. Source: Android Central.
  3. Hover your cursor over “More Tools“.
  4. Click-on “Extensions” from the drop-down menu.

https://www.androidcentral.com/how-manage-all-your-chrome-extensions-chromebook

Edge

  1. At the top corner of the browser select “Settings and more” > “Extensions” > “Get extensions for Microsoft Edge“.

https://support.microsoft.com/en-us/microsoft-edge/find-add-or-remove-extensions-in-microsoft-edge-f3522273-d067-7435-6a9d-fdb99213e9a8

Firefox

  1. Click the menu button and choose “Add-ons“. The “Add-ons Manager tab” will open.
  2. Select the panel for the type of add-on you wish to view or manage, such as the Extensions, Themes, or Plugins panel.

https://support.mozilla.org/en-US/kb/find-and-install-add-ons-add-features-to-firefox

Safari

  1. Select “Safari” > “Preferences“.
  2. Then click on the “Extensions” tab.
  3. All extensions that are currently enabled will have a checkmark in the box to the left of the icon in the Extensions sidebar.

https://eshop.macsales.com/blog/38377-rocket-yard-guide-how-to-install-manage-delete-safari-extensions/