Browser controllers provide two methods which parallel two of the
module-level convenience functions:
open(
url[, new[, autoraise=1]])
Display url using the browser handled by this controller.
If new is 1, a new browser window is opened if possible.
If new is 2, a new browser page ("tab") is opened if possible.
open_new(
url)
Open url in a new window of the browser handled by this
controller, if possible, otherwise, open url in the only
browser window. Alias open_new.
open_new_tab(
url)
Open url in a new page ("tab") of the browser handled by this
controller, if possible, otherwise equivalent to open_new.
New in version 2.5.
