&gt; Firefox had an amazing plugin called &quot;Ubiquity&quot;, which was basically like command line for your browser and you could write custom scripts for it.<p>oh man, i was a core developer for ubiquity (i wasn&#x27;t the best core developer out there, but i was trying to help)[0]. it was an amazing tool, great devs working on it, mozilla was helping... but all of sudden, everybody just stopped.<p>i really wish it would come back. it was one of the best developing experiences i had in my life.<p>[0] <a href="https:&#x2F;&#x2F;github.com&#x2F;mozilla&#x2F;ubiquity&#x2F;commits?author=fernandotakai&amp;page=1" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;mozilla&#x2F;ubiquity&#x2F;commits?author=fernandot...</a>