The SELinux sandbox works like this: If I start Firefox in a sandbox then the original Firefox directory gets copied to a temporary place, and any changes done in the sandboxed Firefox get's deleted if I close the browser.
But I always want to use the sandboxed Firefox. This means that if there are any updates to a Firefox Add-on, they will be updated in the sandbox, but the updates will be deleted when I close the browser, and when I next open the sandboxed firefox the old add-ons will be used...
I think that updating firefox Add-ons could be done via the repositories of the OS, but.. I didn't found them using "yum search all adblock", for example.
Are there any ways to solve this problem? I always need to use fresh Firefox Add-ons!