Does Firefox on my phone support plugins?
Support for plugins in Firefox for Maemo has been disabled. On most Web pages that use the Adobe Flash plugin, the performance of the plugin didn’t meet our standards, and the interactivity and performance of the entire Web page was negatively impacted. This was especially felt on pages with multiple instances of the plugin. Advanced users can enable plugins for experimentation and testing purposes only. We are working on ways for the user to have control of which sites to enable plugins for, as some sites, like YouTube, do work quite well. That capability will most likely be packaged as a browser add-on.