Twitter is already talking up its Firefox OS app.

Mozilla announced at Mobile World Congress this week that its new operating system Firefox OS will make its way to a number of mobile operators around the world. More on that here.

Twitter says that its app for Firefox OS will be similar to its other mobile apps with a “rich interface, featuring the Home, Connect, Discover and Me tabs, as well as the search and compose Tweet icons, so you can easily find and send Tweets from anywhere in the app.

Yep. It looks pretty much like the other Twitter apps:

But it does have at least one difference.

“We’ve also implemented support for a feature unique to Firefox OS: Web Activities. This lets you tweet photos directly out of any app that also supports web activities such as the built-in photos app.”