Here are the most popular add-on collections for the Firefox browser:

Windows 7 Theme for Firefox 3.5

32430 subscribers – This collection of add-ons were gathered to help you make Firefox 3 more seamless in the Windows 7 operating system.  Not only do you get the nice theme and tweaking add-ons, but you also get some great time conserving tools too!

Web Developer’s Toolbox

7934 subscribers – Speed up the development process by using add-ons to troubleshoot, edit, and debug web projects without ever clicking away from Firefox.

Reference Desk

5033 subscribers – Make the librarian jealous with add-ons that help students, researchers or anyone with a tough question find and document all the answers.

Lifehacker’s Must-Have Extensions

3849 subscribers – Then of the must-have add-ons for Firefox, as picked by the brilliant minds over at Lifehacker.com. Included are ten of the best add-ons for Firefox out there today.

Better Pack

2564 subscribers – Lifehacker’s “Better” add-ons, compiling multiple Greasemonkey tweaks for YouTube, Reader, Gmail, Google Calendar, Flickr, and other sites.

Power User Pack

1537 subscribers – Collection of Add-ons for power user, sys admin, developer, surfer, and more.  Most powerful add-ons which would change interface to better and tidy, add some cool functionality.

Traveler’s Pack

1270 subscribers – When the travel bug bites, these add-ons make it easy to plan, book and document your trip — without getting lost along the way.

Family Organizer

1211 subscribers – Create a safe and fun online experience while planning everything the family does offline with add-ons that keep the family cooking.

Social Circuit

1176 subscribers – Whether it’s LOLing with a BFF, finding a job or staying connected with old classmates, social networking add-ons keep the most popular sites front and center.

Icon-Only Perma-Tabs for Gmail and Google Reader

592 subscribers – Keep your Gmail and Google Reader tabs open at all times, but shrink them down to show the favicon only and add your unread count on the icon.

Know of an add-on collection that can get the proverbial job done better than the ones I listed above?  Leave a comment and share it with the group.  Also, if you have pulled together your own unique collection – share those with me too in the comments.

It is no secret I am a big fan of Gina Trapani’s line of “better” add-ons for Firefox, so I can tell you I was more than excited to see that they had been rolled together as an add-on collection, so you can grab them all at once. 

Which extensions make the list?

Better Gmail 2 – Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.

Better Amazon -  Highlight Amazon listings with free shipping, automatically enlarge product images, clean up book pages, shorten URLs and more on Amazon.com. Enhances Amazon.com with a compilation of user scripts and styles. All scripts copyright their original authors. Click on the script homepage in the Help tab for more information.

Better Flickr -  Adds collapsible header and sidebar, event title text wrap, colored weekend days, week numbers, and skins to Google Calendar.

Better GReader -  Preview web pages inline in Google Reader, collapse the header and sidebar for more reading area, add favicons to feed subscriptions and more with Better GReader.

Better YouTube – A compilation of some of the best Greasemonkey user scripts for YouTube in one interface.

Go pick up the Better Pack of Firefox Add-ons and find out what is so great about them yourself.

AutoPager is an extension that will automatically load the next page in a series of links so you have a continuous and infinite scrolling web page.  By default AutoPager works with a ton of sites, including Lifehacker, the New York Times, Digg, and, of course, Google.

What if you want to use this add-on on a web site it was not configured to work with yet?  Check out this tutorial on how to create new rules for the AutoPager extension:

• How to Create AutoPager Rules for New Web Sites

So if you are tired of hitting “Next” then get yourself to the Firefox Add-ons site to pick up this recommended add-on.  If you want to learn more about AutoPager, you can also visit it’s official section over at teesoft.info.

Better Amazon – The Better Amazon add-on for Firefox highlights listings with free shipping, enlarges product images, cleans up book pages, shortens URLS and more on Amazon.com.  One of the best Amazon.com enhancers for your browser.

Better Flickr – A great complication of Greasemonkey scripts to make Flickr better for your average user.  You have the Flickr buddy icon reply, more user links, photo magnifier, page enhancer and a more feature rich editor.

Better GCal – The Better GCal add-on for Firefox is a favorite of mine.  It allows you to collapse the header and sidebar, wraps event titles, color weekend days, give week numbers and even a few skins too.  Google Calendar never looked so good!

Better Gmail 2 – A handful more of useful features you can add to your Google-powered e-mail client.  Here you have all kinds of useful additions, from macros to attachment icons.  You even have a few more skin choices and hierarchical labels.  Also don’t forget the first one, if your not yet rolled over to “Gmail 2″.

Better GReader – Add a few more popular Greasemonkey scripts into your Google Reader.  You can preview web pages inline in Google Reader, collapse the header and sidebar, get a Mac OS X like skin, add favicons and tons more.

Better YouTube – Enhances YouTube with Greasemonkey user scripts, that offer options like the FlowPlayer “doesn’t start till you hit play” viewer, clean “theater” view, and links to download the video automatically.

Better Lifehacker – I am a BIG fan of Lifehacker, so why not make them “better” too?  This extension enhances Lifehacker.com and other Gawker blogs–like Gizmodo, io9 Jezebel, Valleywag, Gawker, Kotaku, Jalopnik, Defamer–with useful Greasemonkey scripts.

Which is your favorite “Better” add-on for Firefox or which area of the Web would you like to see Gina cover next?

Here are the list of the “better” Firefox extensions and what has come with the most recent update:

Better Gmail 2 – Version 0.5.2: Updates and fixes the Redesigned skin; Adds Hide Gmail chat script.

Better Flickr – Version 0.3: Adds Firefox 3 support, Rich Edit, Photo Page Enhancer, and Thumbnail Page Enhancer.

Better GCal – Version 0.3: Adds the Redesigned skin beta by Globex Designs.

Better GReader – Version 0.3: Adds Colorful List View; Updates the Minimalistic skin; Adds international domain support including google.co.uk, google.es, google.de, and others.

Better Lifehacker – Version 0.2: Adds HTML Helper and Nested comment replies.

Better YouTube – Version 0.4.3: Adds Firefox 3 compatibility; Fixes FlowPlayer (alternate, non-autoplaying player) and YouTube Theater view.

I’ve always enjoyed Gina’s work on these plugins, cause with each I am shocked and amazed with how much functionality she’s able to pack into there. Make your Firefox a little better with these additions too!

For those of you who are not familiar with the idea, Gina at Lifehacker is a master at rolling up a lot of great Greasemonkey hacks into one big extension for Firefox adding form, functionality and style to various Google services.

Here are some of the Greasemonkey Google Reader scripts that got rolled up into Better GReader:

• Air Skin
• Auto Add to Reader (bypass iGoogle choice)
• Minimalistic
• Optimized
• OS X Skin
• Preview Item (automatically)
• Preview Item (click button)
• Smart Subscribe

I always look forward to seeing what they do with their “Better” Firefox series of extensions at Lifehacker and this one is no different. Pick it up for yourself and let me know what you like or don’t like about it.

Firefox only: Google Reader is one of the best web-based feed readers out there, but it could stand a few adjustments. Greasemonkey scripters have come up with a few Google Reader user scripts that make some welcome GReader tweaks like maximizing the viewing area, skipping Google’s default subscribe mechanism, and adding keyboard shortcuts.

I downloaded it the minute I saw it and haven’t stopped using it yet. Can’t wait to see what they do with it in the future. Good work guys (and gals) at Lifehacker!

+ Download and Install the Better GReader Extension for Firefox!

Gmail’s good, but it could be better. We’ve featured several Greasemonkey scripts that enhance Gmail in lots of different ways – like adding saved searches, attachment icons, label colors, keyboard macros, a filter assistant and right-click conversation previews. But not everyone wants to install Greasemonkey and hunt down all those scripts.

+ Download and Install the Better Gmail Extension for Firefox!