3. Can't Miss Warnings
Lots of browsers have had phishing warnings before (including Firefox), but they've been wimpy. Usually they involve some part of the address bar changing color or some icon popping up near the URL. The problem is they're too easy to miss. I'm not looking at the address bar when I'm waiting for a page to load. I'm looking at the main well of the browser where the page will display.
But there's no danger of missing one of Firefox's new warnings. When you enter the URL of a suspected attack site, Firefox brings up a full-page warning. With a click, you can see a detailed explanation of why the site was blocked. Or you can just click "Get me out of here," which takes you to Firefox's start page. If you really want to live dangerously, there's a small link that lets you ignore the warning and proceed to the suspect site.
4. Better Bookmarks
If you like a page, you just click the star in the Location Bar and it's a favorite. A dropdown box lets you name it, choose a folder to put it in or add a tag to categorize it. Bookmarks (and your browsing history) are now stored in a database, which means you don't have to spend so much time organizing bookmark folders. You can perform detailed searches of your bookmarks, then save that search as a special folder. Any new bookmarked page that fits the criteria automatically goes in the folder.
5. Whole-page Zooming
If your eyes aren't what they used to be, it's nice to bump up the size of text on Web pages, as Firefox 2 will do. But it only changes the text size -- the other elements remain the same size. That makes for pages that look like The Incredible Hulk, with words bursting through the boxs and tabs that are supposed to contain them.
The new Firefox magnifies everything on the page equally. Everything remains in proportion, but becomes easier to read. And the next time you visit that page, it'll display at the same level of zoom.