TweakMASTER's DNS Acceleration feature will only automatically add host names to the hosts list from Internet Explorer. This feature cannot work with FireFox, Opera, Chrome or any other browser. You can still import your Firefox or Opera bookmarks, and manually add other URL's as desired to speed up accessing those sites, but they will not be added automatically except by using Internet Explorer.

This has no effect on the updating feature. TweakMASTER will still automatically update the hosts list on the schedule you choose (Weekly is the default) and that is the most important thing, as any domain which has switched servers will not come up for you in any browser if the IP address on your hosts list is obsolete and has not been updated.