Why are the internet options not getting saved? Home-page becomes http://search.imesh.com/ every time I re-start mozilla inspite of changing the default home-page. Similarly with the option of"Remember passwords for sites" .

Downloaded and installed imesh application. Opened mozilla firefox browser and found that imesh search page has become the default home-page. Uninstalled imesh, changed the default home-page back to "mozilla start page" in the internet options, closed the browser and re-started. But http://search.imesh.com/ re-appears as the home-page with the default home-page setting automatically changed in the internet options. Same thing is happening with the option "Remember passwords for sites". Inspite of unticking this option, when I re-start it comes back as ticked. The question is - why are the internet options not getting saved?