search selection shortcut script update 1.5:

remove an unnecessary preference.
the default hotkey ctrl+shift+F will always search your default engine,
while the secondary hotkey ctrl+alt+F will match engine to website.
and the secondary hotkey can be turned off with the pref now.
script is even better at finding search engines for the active tab.
it will now take query into account, which helps e.g.
in distinguishing between different types of google search,
e.g. google images, google maps etc.
so if you're currently looking at google image results and
you use the match hotkey, it will automatically pick google images
instead of your regular google search engine.
that is, provided you have a google images search engine installed ofc.