If typing in Google Docs and you press Ctrl+B to make something boldface, or you press Ctrl+F to open Chrome's text search box, but instead the AdBlock menu opens, it means a shortcut has been reassigned. We're not sure how this happens, but it's easy to fix.
Remove a Keyboard Shortcut in Chrome:
1. Open chrome://extensions.
2. Click the hamburger menu (three vertical lines in the upper left-hand corner)
3. Select Keyboard shortcuts
4. To remove the shortcut, click the "x" at the edge of the box