In firefox the goole tool is integrated, it makes easy to fast serching.Firefox allows you to open new tab or new window while Internet Explorer allows to open a page in new window only.In firefox you can open many tabs in same window.Firefox does have sacurity holes. On the top side of the browser you can easily drag and drop the link , it automatically adds a button. Firefox is free to download while Internet Explorer is not free. Internet Explorer uses more memory uages than the Firefox.
If you want to bookmark any web page, firefox provides you Bookmark button.
If you want to open servral bookmarks at once then you should need to put the all bookmarks in one folder under the bookmarks and then open the bookmarks in tabs. While in Internet Explorer it is not possible.While right clicking on the web page , selct the 'Page Info' button it give all the webpage info.Firefox give faster response than Internet explorer, so it can save lots of time.