I've recently switched to Firefox as my main browser and am very happy with it so far.
As a bonus, I've found that Firefox has a very useful extension called "Web Developer". The extension downloads in a few seconds, and adds a toolbar that gives you access to lots of useful options with one click.
An especially useful features for PBase is "Display ID and Class details". This inserts little labels at the start of each class or id (galleryheader, thumbnails, localmenu etc.). You can also ask it to draw outlines around all block level elements, or just the ones you choose - e.g. you could tell it to draw a red outline around each <DIV> and a blue outline around each <p>. This kind of thing is actually a lot quicker to do than it is to describe here!
There are lots of other features such as an analysis of page size (download times) and one-button CSS and HTML validation.
I think this could be well worth a look for anyone who likes playing around with the look of their PBase pages.