Removing the battery to "fix" something is almost always a bad thing when it comes to a full operating system. You might very well have done it at just the wrong moment and now you're stuck with a corrupted file system.

What do you get if you open an XTerminal and type
What happens if you type
Your photos are saved in this directory.

For future "fixing", try Ctrl+Backspace on the keyboard to get back to the process managing view and try to kill the browser by tapping the blue X.