which are your essential firefox add-ons?

1.         AdblockPlus{1.1.1}.xpi   -- Ads were yesterday!
2.         All-in-OneSidebar{0.7.10}.xpi   -- Sidebar control with award-winning user experience!
3.         AutoPager{0.5.2.2}.xpi   -- AutoPager is a firefox/mozilla extensions to autoloading next page at backgrand.And you can use it an XPath generator too.
4.         BackToGoogle{1.2}.xpi   -- Go back to your last Google results page.
5.         CloseTabByDoubleClick{1.09}.xpi   -- Close active tab by double-clicking it.
6.         ColorfulTabs{3.9.3}.xpi   -- Colorful Tabs colors every tab in a different color and makes them easy to distinguish while beautifying the overall appeal of the interface.
7.         CompactMenu2{2.3.2}.xpi   -- Duplicates the menubar on the toolbar as a menu of menus.
8.         CustomizeGoogle{0.76}.xpi   -- Enhance Google search results and remove ads and spam
9.         DictionnaireHunSpellenFranaisrforme1990{2.1}.xpi   -- (none)
10.         DictionnaireHunSpellenFranais{2.1}.xpi   -- (none)
11.         DownThemAll{1.1.4}.xpi   -- The mass downloader for Firefox.
12.         DownloadStatusbar{0.9.6.5}.xpi   -- View and manage downloads from a tidy statusbar
13.         ExifViewer{1.51}.xpi   -- Extracts and displays the Exif, and IPTC Core metadata, as stored by digital still cameras, in both local and remote JPEG images.
14.         ExtendedStatusbar{1.5.4}.xpi   -- A Statusbar with speed, percentage, time and loaded size (similar to Opera's one)
15.         FEBE{6.2}.xpi   -- Backup your Firefox data
16.         FastDial{2.23b1}.xpi   -- (none)
17.         FireTray{0.2.3}.xpi   -- A system tray extension for linux
18.         FirefoxNotify{1.5.4}.xpi   -- Send Dbus Notification on Firefox Events
19.         Fission{1.0.9}.xpi   -- Progress bar in the address bar (Safari style).
20.         FlashGot{1.2.0.2}.xpi   -- Enables Firefox to handle single and massive ("all" and "selection") downloads using the most popular external download managers for Linux.
21.         FxIF{0.2.3}.xpi   -- View EXIF data in image properties.
22.         GooglePreview{3.22}.xpi   -- Localized description in *.properties file.
23.         HistogramViewer{1.1.0}.xpi   -- Generates the histogram of a selected image.
24.         HistorySubmenus{1.34}.xpi   -- Adds submenus to History Menu for previous days' history
25.         OrganizeStatusBar{0.6.3}.xpi   -- Organize your status bar icons.
26.         QuickRestart{1.1.5}.xpi   -- Adds a "Restart Firefox" item to the "File" menu.
27.         SearchbarAutosizer{1.4.2}.xpi   -- Auto resizes the search bar as you type
28.         ShowIP{0.8.17}.xpi   -- Show the IP address of the current page in the status bar.
29.         Stop-or-ReloadButton{0.2.2}.xpi   -- Turns the stop and reload buttons into a single one. When you can stop, you have a Stop button, otherwise you have a Reload button. (Like Safari)
30.         TabScope{0.2.2.11}.xpi   -- Preview and navigate tab contents through popup.
31.         UndoClosedTabsButton{3.5.1}.xpi   -- Add a toolbar and/or tab bar button to undo closed tabs
32.         UpdateNotifier{0.1.5.5}.xpi   -- Notifies you when updates are available for your extensions and themes.
33.         VacuumPlacesImproved{1}.xpi   -- Defragment your firefox places.sqlite database to speed-up Firefox
34.         WOT{20090414}.xpi   -- Web of trust.

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