Mark Read Checkbox in Field Permissions for Salesforce Profile with Bookmarklet

Below is a functional bookmarklet that you can use to mark the Read checkbox for every single field in the Field Permissions section of an object's settings within a Salesforce Profile.

Mark FLS Read Checkboxes

To use the bookmarklet:

1. Drag the link ("bookmarklet") on to your browser's bookmarks bar
2. Open an object settings page within a Salesforce Profile
3. Click the bookmarklet in your browser's bookmarks bar

Note: This was tested with Chrome on Windows 8 in Salesforce Winter '14.