After many of you remember the iPhone apps you can't live without and the Windows Mobile apps you can't live without, what are your Firefox add-ons you can not live without!

Try to limit your add-ons to Extensions and Themes. Tell us what you couldn't live without installed on your Firefox 3.x (Try to keep most apps Firefox 3.5 compatible) Please repeat ones that are already on the list

To get the thread started, My favorite extensions:
Adblock Plus!
CuteMenus2
FireFTP
IE Tab
ImageZoom
Tab Mix Plus
Qute 3++ (Custom Mod) (Theme)

Stylish
Noscript
Password Exporter
Hide Menubar
Download Statusbar
Glasser

Xmarks
Lastpass
Gmail Notifier
Adblock
Office black theme

Nobody mentioned GreaseMonkey yet? hmm...

Just add ALL the ones you can't live without.. it's all self-opinionated

All Glass Firefox v2 by our member Ambroos and the original Glasser creator
Undo Closed Tabs (For clumsy ppl like me)
Hide menubar with the glasser
Stylish
TabScope
ShowIP for internet problem diagnostics and ping tests

Stylish - (Re-skin the web) <----Screens below
Nasa Night Launch theme
1Password
Cooliris

Your facebook and google page look really cool! Just your email is showing in your Google image

I use:

Adblock Plus
Air Miles Toolbar (99% of the time hidden though, I just have it because one can get 30 Air Miles a month free)
Canadian English Dictionary
ChatZilla
Flagfox
FxIF
Glasser
Greasemonkey
Hide Menubar
Smart Stop/Reload
Xmarks

no big deal, ive had Gmail since day 1, my spam list is enormous by now it's a wonder anything gets through

Weave Sync - https://addons.mozilla.org/en-US/firefox/addon/10868
Download Status Bar - http://downloadstatusbar.mozdev.org/
FireFTP - https://addons.mozilla.org/en-US/firefox/addon/684
Tabs Open Relative - https://addons.mozilla.org/en-US/firefox/addon/1956

ForecastFox and Gmail Manager

Adblock Plus
DownloadHelper
Flashblock
gTranslate
Linkification
Yes popups

Adblock Plus
Download Helper
FEBE
FoxTab
Undo Closed Tabs Button
URL Fixer
WOT
GreaseMonkey

Adblock Plus!
Noscript
Skipscreen

The absolute number 1 I must have at all times is Noscipt!

Adblock Plus
British English Dictionary
Download Status Bar
Google Preview
Xmarks
Linkification

And hopefully Tab Mix Plus when its compatible with 3.5

Adblock Plus
Flashblock
QuickJava
Download Helper
British English Dictionary
Personal Menu
Undo Closed Tab Button
FaveiconizeTab
Stop-Or-Reload Button
Download StatusBar
Fission
Colorful tabs
IE tab

I just use Adblock Plus, that's it.
It really is good and amazing, i just love it!

Stylish
Tab Mix Plus
Adblock Plus
Mr Tech Toolkit
Noscript.

Weather Channel
Adblock Plus
IE Tab
NoScript
Tiny Menu
WOT - Web of Trust

Adblock Plus and NoScript are must haves!!

adblock plus
xmarks
Google Redesigned
Compact Menu 2

That is SOOOOOOO sexy!! everything works for me but the google web homepage it's just plain white google?

All-Glass Firefox v2 (my own addon, see signature!)
Compact Menu
Greasemonkey
Stylish

That's about it!

ctrl+shift+t does the same and is built in




my addons+how my fix looks.

Adblock Plus
ImgLikeOpera
Download Helper
Stumble Upon
Flashblock
Google toolbar

- Download Statusbar
- Extended Statusbar
- Glasser
- Hide Menubar
- Stylish
- Clippings
- Flagfox
- Firebug
- New Tab Homepage
- Tabs Open Relative
- Remove It Permanently
- XUL/Migemo (to get the 'find' function to work as similar to Safari 4's as is possible )

Adblock Plus
Lazarus Form Recovery (among the most underestimated addons? )

Personal Menu
KeyScrambler (must have for Paypal)
Secure login
Gmail Manager
Google Enhancer ( in anticipation of the Customize Google update)

and the usual suspects:

Adblock Plus + Element Hiding Helper
Xmarks
Greasemonkey
Stylish

These 3 always get installed first:

Adblock Plus
Compact Menu 2
Smart Stop/Reload

I'm also growing fond of:

DownloadHelper
Linkification

I used to be a big fan of NoScript, but after not installing it this time round, I realize what a pain in the ass it could be at times. I'll trade a little less control for a lot more functionality

Adblock Plus
All-in-One Sidebar
British English Dictionary
Gmail Manager
IE Tab

Adblock Plus
British English Dictionary
Easy DragToGo
FlashGot
Greasemonkey
Tabs Open Relative

Adblock Plus
Adobe DLM
Codeburner for Firebug
Colourful tabs
Customize Google
English Aussie Dictionary
Firebug
Flagfox
Flashgot
FoxClocks
Image Toolbar
Key Scrambler
Net Usage Item
PC Sync 2
Perspectives
Tweak Network
Web Developer.

I have a theme called Redshift V3. I quite like this theme but it is not suitable for 3.5 FF so I am remaining on 3.0.11 until it is updated.

Adblock Plus
Stumbleupon
Downthemall
Xmarks

I use about 45 extensions in total (hence why I've never considered switching to another browser ), but my must-haves:

Adblock-Plus
Add-On Collector
Download Statusbar
Glasser
Greasemonkey
Image Zoom
LogMeIn
Long URL Please
Nightly Tester Tools
Nuke Anything Enhanced
SmarterFox
Tabs Open Relative
Xmarks

DownThemAll
Adblock
FoxTunes
Yoono
Xmarks
StumbleUpon
Stylish

Billeo is definitely a must-have Add-on! It has all these useful features that help pay bills, shop online and manage passwords. It also reminds you when your bills are due. It is now compatible with Mozilla 3.5 - http://addons.mozilla.org/en-US/firefox/addon/12715

Well, I would suggest the ones I use, but most of you guys have listed them already many times over.

One that I didn't see though was Save Image in Folder. Really useful in helping you keep all your images sorted by easily downloading them to predefined folders. One of my favorites by far.

I don't believe anyone's mentioned Fire.fm yet. Any users of Last.fm need to have this add-on for listening to their music!

can't edit my post, i found 2 good ones in this thread.

Tabs Open Relative
SkipScreen

Adblock Plus
BBCode
Copy Link Text
deviantTIDY
FlashGot
Greasemonkey
Menu Editor
Tiny Menu
URL Tooltip
YesScript

Australian English Dictionary
Auto Dial
Download Statusbar
Fasterfox Lite
FireFTP
FlashGot
Greasemonkey (with Youtube HD Ultimate script)
Net Usage Item
Overclockers.com.au Menu
Rikaichan (with Japanese-English and names dictionary)

Adblock
Download Statusbar
Kallout

and most recent SKIPSCREEN!!

Extensions (enabled: 22, disabled: 1; total: 23)

• Adblock Plus 1.1
• BBCodeXtra 0.2.5.6
• Better Flickr 0.3
• Better Gmail 2 0.8.4
• British English Dictionary 1.19
• CustomizeGoogle 0.76
• FireFTP 1.0.5
• Firesizer 0.92
• FxIF 0.2.3
• Glasser 1.1.1 [disabled]
• Hide Menubar 1.0.20090705
• IE Tab 1.5.20090525
• Image-Show-Hide 0.2
• ImageShack right-click 0.3.7
• InfoLister 0.10.1
• Microsoft .NET Framework Assistant 0.0.0
• Nightly Tester Tools 2.0.2
• QuickDrag 2.0.2.1
• Screengrab 0.96.1
• SmoothWheel (mozdev.org) 0.44.18.20090408.3
• Stylish 1.0.5
• Text Link 3.1.2009032701
• Undo Closed Tabs Button 3.5.1

Themes (2)

• Default
• Strata RELOADED [selected]

Plugins

• Foxit Reader Plugin for Mozilla
• IE Tab Plug-in
• Microsoft® DRM
• Mozilla Default Plug-in
• Shockwave Flash
• Windows Media Player Plug-in Dynamic Link Library
• Windows Presentation Foundation

Nice list mrk! Those definitely helped!

mine would be

Web of Trust
Flashgot
image zoom
flash block
Yespopup
adblockplus
roboform

Adblock Plus!
Noscript
CookieSafe

are the three absolute must haves.

Adblock Plus
British English Dictionary
Xmarks

Adblock Plus
DownThemAll!
Fission
MR Tech Toolkit
Stop-or-Reload Button
Xmarks

... and my most recent by Mozilla Labs, Ubiquity, which I'm in love with.

Generated: Sun Aug 16 2009 20:49:25 GMT-0400 (Eastern Daylight Time)
User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)
Build ID: 20090729225027

Enabled Extensions: [46]
- Adblock Plus 1.1.1
- Battlefield Heroes Updater 4.0.21.0
- Better GCal 0.3
- Better Gmail 2 0.8.4
- Better GReader 0.7
- Better YouTube 0.4.3
- Boost for Facebook 9.4.1
- CLEO 4.2
- ColorfulTabs 3.9.3
- Compact Menu 2 2.3.2
- CustomizeGoogle 0.76
- CuteMenus2 3.1
- Download Statusbar 0.9.6.5
- Exch 1.4.5
- Extended Statusbar 1.5.4
- Favicon Picker 2 0.6.0.12
- FavLoc 1.2
- FEBE 6.2
- Fission 1.0.9
- Flagfox 3.3.15
- Forecastfox 0.9.10.1
- Gmail Manager 0.5.7.3
- GooglePreview 3.22
- IE View Lite 1.3.4
- ImageHost Grabber 1.5.7
- Integrated GMail 2.0.1
- Java Console 6.0.10
- LastPass 1.51.2
- Locationbar² 1.0.3
- Menu Editor 1.2.6
- Microsoft .NET Framework Assistant 1.1
- MR Tech Toolkit 6.0.3.4
- Nightly Tester Tools 2.0.2
- Nuke Anything Enhanced 0.68.2
- Organize Status Bar 0.6.3
- Personas for Firefox 1.2.2
- RAMBack 1.0
- Searchbar Autosizer 1.4.2
- Shareaholic 1.9
- Smart Bookmarks Bar 1.4.3
- Stylish 1.0.5
- Tab Mix Plus 0.3.7.4pre.090516
- Update Notifier 0.1.5.5
- URL Fixer 1.5
- Web Developer 1.1.8
- Xmarks 3.3.3

Installed Themes: [1]
- Default

Installed Plugins: (9)
- EA Battlefield Heroes Updater
- getPlusPlus for Adobe 16236
- IGN Download Manager Plug-in
- Java Deployment Toolkit 6.0.160.1
- Java™ Platform SE 6 U16
- Mozilla Default Plug-in
- QuickTime Plug-in 7.6.2
- Shockwave Flash
- Silverlight Plug-In

These are all my favorites:

- Adblock Plus 1.1.1
- Context Search 0.4.4
- Download Statusbar 0.9.6.5
- Fission 1.0.9
- Mouse Gestures Redox 2.1.4
- MR Tech Toolkit 6.0.3.4
- Stylish 1.0.5
- Tab Mix Plus 0.3.7.4pre.090516
- Text Link 3.1.2009032701
- Tiny Menu 1.4.10

- Office 2007 Black theme 1.4.0[/b]