Users can download Twitter Address Bar Search add-on, and it works with latest version of Firefox for Windows, Mac OS X, Linux and even Android.
The Twitter add-on also creates a pinned tab by default, which is useful to visit Twitter website quickly. It allows searching for hashtags and search queries from the address bar itself. Just make sure you have selected Twitter as the new search engine with Firefox.
This is certainly a good move by Twitter to become more active as a source for content discovery. Twitter is not a social network per se, where friends will talk or discuss topics but it is a great way to follow the news and come across interesting content online.
Before Twitter, sees a great deal of monetization, it will need to make its search feature a lot more accessible and acceptable. This add-on seems to be a step in the right direction.
Do try out the official Twitter address bar search for Firefox and drop in your comments.
Link: Twitter Address Bar Firefox add-on