Watch the video:
Timestamps:
0:00 - Explanation
0:20 - What is an unpacked extension?
0:53 - Chrome: Load an unpacked extension
1:36 - Firefox: Load an unpacked extension
Creating a Chrome or Firefox extension, but can’t figure out how to load it to test it? Well, assuming everything’s set up as it needs to be, you can easily load it to test it out. By the end of this video, you should be able to load your plugin to test.
Chrome: chrome://extensions
Firefox: about:debugging