When you mix simple and Firefox together, you can get my attention every time.  The Simple Links Counter add-on for Firefox shows the number of internal and external links on any given page in the browser status bar.   This makes it the perfect companion for all your other web developer tools and add-ons for Firefox.

Once upon a time there was a tiny Twiter tool called, TinyTweet.
This littlest add-on of them all spread joy a harmony throughout the Internets by allowing all those in Twitter land to send tweets to their friend, families and that guy who keeps spamming affiliate deals.  It didn’t do this by any normal means.  Oh no.  It did it’s work by simply highlighting text on any page.

File this add-on under awesome.  The Places’ Tooltip add-on for Firefox adds more detailed information about the bookmarks and links you have saved to your browser. 

Over the weekend I started checking out the newest project out of the Mozilla Labs, Raindrop.  To some it might sound a little like Google Wave – however it offers much more, and is also much easier to wrap your mind around. 
Here is more about the program, in a nutshell, from the developers:
When a friend’s link from YouTube or flickr arrives, your messaging client should be able to show the video or photos near or as part of [...]

Need to save a list of links, but don’t want to copy each one, one by one, individually?  Then you might check out Multi Links.  This Firefox add-on will let you open, copy, or bookmark multiple links, rather than having to handle each one individually. 
To get started, all you have to do is right-click and hold to drag a box around the links you want to effect or “take action” on.  When you release the mouse button, you [...]

Some people may find the fact that Firefox opens a new tab on the far right of your tab toolbar a blessing and some might find it a curse.  It really has to do with how many tabs you are look at, in one single browser.  For those who are cursed today, I have your solution.  The Tabs Open Relative extension changes how new tabs open up, which means no more tab surfing for you.
Once installed, the Tabs Open [...]

The idea of having a Firefox extension that gives you content related to what you are looking at is nothing new really, however I have found a Firefox add-on that will help you get it done in a new and exciting way. 
Headup underlines words on pages when you browser.  When you hover over those words, you get relevant content from popular web services. 

Technically speaking, they  “presents you with textual and rich media content related to the [...]

There are dozens of add-ons for Firefox that will generate any number of tiny URLs from any number of link shortening services.  With that said, I have one more to toss into the category, that may be a little more visually pleasing than some others I have shown you in the past.  The TinyURL Generator is a tiny extension in its own right that allows you to quickly.. well, generate a TinyURL to share.
It creates a TinyURL for the [...]

Wanting to save some space in Gmail, or perhaps you’re just tired of the text-based main links to browse around your e-mail account?
The GMail Compactor user script will help you reclaim that space with style.

As you can see, from the picture above, after you install this Greasemonkey user script, everything from your Compose Mail link down to your Contacts link are now minimized into very pretty icons.  As an extra benefit, you also still get the count of how many [...]

Need a new way to shorten your links?  Foxy URL hopes to be the extension you turn to, in that situation.  This add-on for Firefox keeps it nice and simple.  After you install it, you just add the icon for it to your navigation toolbar.  Once that is done, click on the icon and your link is shortened.

Click the “copy to clipboard” button and you are ready to share your link with the world.  That is it.  No fancy [...]