Environment:All web browsers
I implemented the Firefox search plugin - see http://www.doctrine-project.org/jira/browse/DWEB-8 - that is published via the following LINK element in the HEAD of your pages.
<link rel="search" type="application/opensearchdescription+xml" title="Doctrine API Documentation" href="https://addons.mozilla.org/en-US/firefox/downloads/file/67525/doctrine_1.1_api-20091022.xml?confirmed">
The plugin does not work now that structure of your API documentation has changed. I have updated, and improved the plugin. The new download URL follows.
If you want to view the source first, simply follow http://dadl.danbettles.net/search_plugins/orm/1.2/view_source.
I'm still maintaining the plugin page on Mozilla Add Ons, for now, but by linking to my site, you can be sure that visitors to doctrine-project.org will always get the most up-to-date version.
The biggest, and most useful, change to the plugin is the addition of suggestions. My site regularly indexes your documentation and serves-up suggestions as you type. Should a user press "Enter" without choosing a suggestion in Firefox, a Web page listing all matches will be displayed. If a user types a name that exactly matches an item in the documentation, the relevant page in the API documentation will be displayed.
If the service proves to be useful, I'll make a few changes and publish an ORM 2.0 plugin. I may also set things up to index function names, too.
Sorry it took me so long to update the plugin - it's been a while since I worked with Doctrine, so I hadn't noticed the changes to your site.
Please let me know how you get on.