This thing does not actually restart your browser. It just closes and reopens all the tabs. Which means its basically useless for all cases where your browser process misbehaves and needs a restart.
The name is a lie.
What it's worse - it can not do the single one thing people actually want - activate the already browser-built-in restart function. Instead it gives you a steaming sh*pile of BS functions nobody needs, and which I never even tried.

@developer: Defaults are everything. In default mode this thing is useless. End of story. If you want to make it useful, put a restart option into the file menu, next to exit, and have it activate the browser restart function. Also make this default for your toolbar button.