The community driven Blockchain platform Turtlenetwork plans on launching a web wallet extension called Turtle shell.
As per the update from the BlackTurtle Blog https://www.blackturtle.eu/2018/12/18/blackturtle-weekly-insights-18-12-2018/. The Turtle Shell Web Browser Extension will be something similar to Waves Keeper and Metamask. The Wallet Browser Extension according to the update is on the testing phase. Yet to be made public. More details will be unfolded as we gather more updates.