Download sites have instructions as to how to download and install that plug-in. The language used to write web pages, HTML, is constantly evolving and browser manufacturers have to keep up. HTML 3.0 introduced frames to the web vernacular. Not all browsers can interpret all the new vocabulary.
Frames are a new way of displaying information on web pages.
When you link to a page that has frames, that page will call up several other pages to nestle into certain partitions of your browser window. You could visualize this first page as a family photo frame with several holes. The photographs that will sit in those holes are really just other pages. You should also learn how to navigate in a frames environment . Okay, so you know you can navigate by clicking on hypertext and icons, and the new page is going to load into either that same frame or a new one.