Script Summary: Pretend safe search is locked. This simple script, and cookie deletion, is enough to bypass and mimic Google's safe search lock.
This script will make all Google search pages show Safe Search as locked.
Google recently announced that they were "we're launching a feature that lets you lock your SafeSearch setting to the Strict level of filtering. When you lock SafeSearch, two things will change. First, you'll need to enter your password to change the setting. Second, the Google search results page will be visibly different to indicate that SafeSearch is locked."
The problem is, you don't actually need to enter a password to change the setting, just delete your cookies. Thousands of websites (even ones for kids) will tell you how to do this. And if deleting cookies is disabled, it's usually easy to run PortableFirefox. Or, you can use Private Browsing.
But Google assures us that "the colored balls give parents and teachers a clear visual cue that SafeSearch is still locked." If only there was some way to change the visual appearance of a page after it's downloaded...
Google should know by now that client-side security is fundamentally flawed.