Hi, I recently licensed two copies of SafeOnline running in conjunction with free Prevx. I was able to get one working under Firefox on a desktop PC running XP SP3 after following Tzuk's suggested workaround to enable Screen Readers under Accessibility Applications in Sandboxie. But this doesn't quite do it on my Thinkpad running XP SP2. Here, the Prevx tab appears but always shows Host Name: Unknown; IP Address: Unknown; ...IP will be verified shortly; SSL Status: Unknown. But SafeOnline: Works fine under Firefox outside Sandboxie. Works fine under Opera in a similarly configured sandbox on the notebook. Works fine on the desktop PC in a very similar configuration, as I mentioned. Does not work (shows "unknowns") in Firefox in Safe Mode but in a sandbox. For some odd reason, I had to choose "Allow direct access to entire Firefox profile folder" to get the Prevx tab to appear on the notebook, but that wasn't true on the desktop. In both cases, Prevx 184.108.40.206, Sandboxie 3.50 Firefox 3.6.13 on the notebook, also Comodo firewall version 3.8.65951.477 (a later version on the desktop) and Avira free. Tried reinstalling Prevx. Any suggestions would be welcome.