Safari? Keep in mind that resetting Safari will wipe out your Favcons (small bookmark icons) for the sites you visit. But it will remove history and empty the cache which may be what's preventing Safari from running properly.
She can't get into Safari to open it Charlie to then do a reset yet.
Try this Sharon, open up Finder then use this Keyboard Shortcut Shift⇧ + Command⌘ + G and in the drop down window copy and past this into it
and hit Return.
Then in that Window look for this file
and drag it to your Desktop. Now try and open Safari. Doing this (dragging to desktop) will take it out of the current Safari State and when you try and open it again, it will make a new one. If Safari open, good, go on with your life, but if Safari still hangs, then drag the .plist back to that folder, click replace, and then restart your Mac, holding down ⌘ + R key which will boot to the recovery partition..
Then in the Top Menu Bar, select Utilities, then Disk Utility open it. Select your HD in the Left column, First Aid up the top, then Repair Disk Permissions down the bottom. When its finished, restart your MB and try Safari.
Still no good come back and let us know . . . .
Cheers