ProxyList did not show up FF14 Toolbar Rated 1 out of 5 stars

The Proxy List is enabled in FF14. Viewed on FF14 Add-on manager. The operating system is Windows XP SP3. I also encounter login problem into this review forum. The only time I can login is reported I forgot my password. Then from my email I click the link to a new page and change password. Then login with new password and prompt again with pictorial words for guessing. Then I can login to this forum. It will repeat again for next time. I am not sure how to solve this, may be it is a related problem in FF14.

This review is for a previous version of the add-on (1.6.1-signed.1-signed).  This user has a previous review of this add-on.

Proxy List addon was developed in Windows XP SP3 and has never faced such an issue in the OS. It may be an addon conflict. Do you have a few other addons installed?
Have you tried uninstalling and installing again?