FR: Persistent picker window size & launch on login checkbox

[i0ntempest]

Thanks for making this great little utility!
I have 3 suggestions to improve its usability:

1. When you click a link, the original Browserosaurus app pop up with the first browser right under the mouse cursor, so it can be immediately selected and launched. This isn't the case for this project. (EDIT: seems like this is caused by me adjusting the picker window size. See the next point)
2. Currently it does not seem to remember the size of the picker window, and it resets on every launch and cutting my browser list short. Would be great if it could remember the window size.
3. A built-in checkbox that adds the app to the launch on login list would be very helpful too.