firefox problem

[mastercho]

1. Install the plugin in a local copy of Firefox (on your hard drive)
2. Locate your plugins directory (usually C:\Program Files\Mozilla Firefox\plugins\)
3. Copy the plugin you need from there to your FirefoxPortable\Data\plugins directory (Some Exmaples: For Flash, copy NPSWF32.dll... for Shockwave, copy np32dsw.dll) etc.

and firefox>Bookmarks>Organize Bookmarks>Import and Back up

its not help i try but not work... whit which file they are install and unistall maybe this file is broken