Hide Google Sidebar

Creates a button below Google search bar to make possible show and hide this annoying left sidebar in Google search results. Script tested with Opera 10.53. It remembers last user's choice.

1. Download the script to a directory of your choice:

2. Open Opera, and go to Tools --> Preferences.

3. Click on the "Advanced" tab and select "Content".

4. Now click "JavaScript Options..." and set "User JavaScript files" to the directory you chose before.

5. Restart browser

Source:  http://userscripts.org/scripts/show/76243