CC Search Browser Plugins
To access CC Search visit http://search.creativecommons.org or install a plugin to add a CC search helper to your browser. This page lists some options for the latter.
Please specify what the plugin you recommend does. Plugins of interest include those that provide access to http://search.creativecommons.org as well as those that work directly with CC-filtered search at specific providers, eg Flickr and Google.
Chrome, Firefox, Internet Explorer
Chrome, Firefox, and IE support OpenSearch. To add CC Search to your search bar, simply visit this page and click the "Creative Commons Search" link. This link contains javascript that should automatically add Creative Commons Search capabilities to your browser.
You can also explore other available OpenSearch plugins related to "creativecommons".
Opera
You can add CC Search as a custom search engine in Opera by following these instructions on the CC Search page.
Safari
There are multiple ways to add custom search engines to Safari. The URL for a CC Search query is http://search.creativecommons.org/?q=<search query here>: