One of the major reasons Firefox is approaching 400 million downloads is because of how customizable the browser is thanks to extensions. In a way Firefox extensions are bittersweet, because they can provide some unique and useful features, but at the same time they can cause some unwanted problems.

Now, a lot of people publish lists of 'best' extensions. It's quick and easy to make these lists. One difference between my list and some of those "99 Must Have, Best Firefox Extensions!" is that is the real list of the extensions that I use every day. These don't just sound good, they work well.

In the last-post, I went through the most popular Firefox extensions and talked about whether they were good ideas or not. However, it seems that not a lot of people think about another side to this, i.e. what are your Firefox extensions licenced under?

While scouring the far corners of the internet, we often run across tools that look great but come up just short of making the cut for a post.

Google Chrome extensions pool is growing and growing fast. Firefox has been the primary tool for web developers for a long time now. Tools like Firebug in Firefox has taken cult status among web developers. But things are slowly changing now and a number of good alternatives for Firefox web developer extensions can be found among Google Chrome extensions too.

For Firefox users who are constantly referring to multiple pages, tabbed browsing is not a feature, but a way of life. There are enough of us that the Firefox addon page lists more than 110 extensions related to tabs.

The number of Firefox extensions continues to grow. For example, when I last wrote about tab extensions just over a year ago, about 110 existed. Now, despite the need to rewrite many extensions to make them compatible with Firefox 3.0, the number is over 190, and the choice is greater than ever.

Maybe you've seen your favorite extensions fall behind when new Firefox releases roll out, but you haven't known what to do about it. A new-ish Mozilla add-on not only enables technically incompatible extensions for testing, but makes reporting actual incompatibilities easy.

Installing these Firefox extensions, like installing any other Firefox extension, is just a matter of clicking the shiny green Install Now button from the extensions' homepages. You'll find both the extensions enabled after a browser restart to complete the installation.