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Legacy contentWebExtension ReplacementURL
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Bamboo ReaderFeedbrohttps://addons.mozilla.org/firefox/addon/feedbroreader/
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BarTab Lite XTab Organizers collectionhttps://addons.mozilla.org/firefox/collections/mozilla/tab-organizers/
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Bookmarks Deduplicator Bookmarks Organizerhttps://addons.mozilla.org/firefox/addon/bookmarks-organizer/
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Contextual Google Image SearchSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Country Flag Country Flag +https://addons.mozilla.org/firefox/addon/flag-plus/
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DownThemAllBulk Media Downloaderhttps://addons.mozilla.org/en-US/firefox/addon/bulk-media-downloader/
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Drag & DropZonesDrag & DropZones (Revived)https://addons.mozilla.org/firefox/addon/drag-dropzones-revived/
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e10s Google Reverse Image SearchSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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FirebugDevTools collectionhttps://addons.mozilla.org/firefox/collections/mozilla/framework-devtools/
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Google Image SearchSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Google ImagesSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Grab and DragScrollAnywherehttps://addons.mozilla.org/firefox/addon/scroll_anywhere/
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Image Block Image Video Blockhttps://addons.mozilla.org/firefox/addon/image-video-block/
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m-wikiMobile Wikipedia (WebExtension)https://addons.mozilla.org/firefox/addon/mobile-wikipedia-webextension/
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Mouse Gestures SuiteFoxy Gestureshttps://addons.mozilla.org/firefox/addon/foxy-gestures/
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Navigate UpNavigate Up WEhttps://addons.mozilla.org/firefox/addon/navigate-up-we/
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NoSquintZoom Page WEhttps://addons.mozilla.org/firefox/addon/zoom-page-we/
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OmniSidebarSea Containershttps://addons.mozilla.org/firefox/addon/sea-containers/
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Pearl Crescent Page Saver ScreenshotPage Saver WE screenshot capture toolhttps://addons.mozilla.org/firefox/addon/pagesaver-we/
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Print EditPrint Edit WEhttps://addons.mozilla.org/firefox/addon/print-edit-we/
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Private TabIncognito This Tabhttps://addons.mozilla.org/en-US/firefox/addon/incognito-this-tab/
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Search by Image (by Google)Search by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Search by Image for GoogleSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Search SitesSearch Site WEhttps://addons.mozilla.org/firefox/addon/search-site-we/
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Self-Destructing CookiesCookie AutoDeletehttps://addons.mozilla.org/firefox/addon/cookie-autodelete/
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SmartSearchContext Search WebExtensionhttps://addons.mozilla.org/firefox/addon/context-search-we/
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Sort TabsSort Open Tabs and Find Duplicatedhttps://addons.mozilla.org/en-US/firefox/addon/sort-opened-tabs/
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Stay-Open MenuUndo Close Tabhttps://addons.mozilla.org/firefox/addon/undoclosetabbutton/
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Tab GroupsTab Organizers collectionhttps://addons.mozilla.org/firefox/collections/mozilla/tab-organizers/
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Tab Mix PlusTab Organizers collectionhttps://addons.mozilla.org/firefox/collections/mozilla/tab-organizers/
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Tile TabsTile Tabs WEhttps://addons.mozilla.org/firefox/addon/tile-tabs-we/
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uBlockuBlock Originhttps://addons.mozilla.org/firefox/addon/ublock-origin/
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Undo Closed TabsUndo Close Tab Buttonhttps://addons.mozilla.org/firefox/addon/undo-close-tab-button/
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User Agent OverriderUser Agent Switcher (revived)https://addons.mozilla.org/firefox/addon/user-agent-switcher-revived/
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VimperatorQuantumVimhttps://addons.mozilla.org/firefox/addon/quantumvim/
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Zoom PageZoom Page WEhttps://addons.mozilla.org/firefox/addon/zoom-page-we/
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VimFxQuantumVimhttps://addons.mozilla.org/firefox/addon/quantumvim/
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Image PickerImage Pickahttps://addons.mozilla.org/firefox/addon/image-picka/
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Thumbnail Zoom PlusImagushttps://addons.mozilla.org/firefox/addon/imagus/
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IPvFoxShow Server IPhttps://addons.mozilla.org/firefox/addon/show-server-ip/
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ScrapBoookOneNote Web Clipperhttps://addons.mozilla.org/firefox/addon/onenote-clipper/
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Image ZoomImagushttps://addons.mozilla.org/firefox/addon/imagus/
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ReloadEveryReloadMatichttps://addons.mozilla.org/firefox/addon/reloadmatic/
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YouTube mp3YouTube to MP3 Converterhttps://addons.mozilla.org/firefox/addon/mp3converter/
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MultiFoxFirefox Multi-Account Containershttps://addons.mozilla.org/firefox/addon/multi-account-containers/
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Priv8Firefox Multi-Account Containershttps://addons.mozilla.org/firefox/addon/multi-account-containers/
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FlashblockChanges to Flash managementhttps://developer.mozilla.org/docs/Plugins/Flash_Activation:_Browser_Comparison
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CookieSwapContext Plushttps://addons.mozilla.org/firefox/addon/context-plus/
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Download YouTube Videos as MP4YouTube MP4 Downloaderhttps://addons.mozilla.org/firefox/addon/youtube-mp4-downloader/
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YouTube Video and Audio DownloaderYouTube Video and Audio Downloader (WebEx)https://addons.mozilla.org/firefox/addon/youtube_downloader_webx/
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FireTitleCrappy Firetitlehttps://addons.mozilla.org/firefox/addon/crappy-firetitle/
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LeechBlockMonasteryhttps://addons.mozilla.org/firefox/addon/leechblock-ng/
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Image ZoomZoom Imagehttps://addons.mozilla.org/firefox/addon/zoom-image/
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AutoClose TabsDustman - AutoClose Tabshttps://addons.mozilla.org/firefox/addon/dustman/
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rikaichanYomichanhttps://addons.mozilla.org/firefox/addon/yomichan/
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Session ManagerTab Session Managerhttps://addons.mozilla.org/en-US/firefox/addon/tab-session-manager/
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Multi Links PlusSnap Links Plushttps://addons.mozilla.org/firefox/addon/snaplinksplus/
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Edit CookiesCookie Managerhttps://addons.mozilla.org/firefox/addon/a-cookie-manager/
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QuickJavaJavaScript Toggle On and Offhttps://addons.mozilla.org/firefox/addon/javascript-toggler/
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QuickDragFire Draghttps://addons.mozilla.org/firefox/addon/fire-drag/
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FlashGotBulk Media Downloaderhttps://addons.mozilla.org/firefox/addon/bulk-media-downloader/
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ZenMate Security & Privacy VPNZenMate VPN for Firefoxhttps://addons.mozilla.org/firefox/addon/zenmate-vpn/
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User-Agent SwitcherUser-Agent Switcher (revived)https://addons.mozilla.org/firefox/addon/user-agent-switcher-revived/
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SoundCloud Downloader - SoundGrabSCDL SoundCloud Downloaderhttps://addons.mozilla.org/firefox/addon/scdl-soundcloud-downloader/
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Save ImagesImage Pickahttps://addons.mozilla.org/firefox/addon/image-picka/
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RoboformRoboform Password Managerhttps://addons.mozilla.org/firefox/addon/roboform/
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NetVideoHunter1-Click Downloaderhttps://addons.mozilla.org/firefox/addon/1-click-downloader-video-photo/
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FireGesturesGesturefyhttps://addons.mozilla.org/firefox/addon/gesturefy/
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Ant Video DownloaderVideo Downloader Professionalhttps://addons.mozilla.org/firefox/addon/video-downloader-profession/
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Youtube Downloader 4K - Video DownloaderYouTube Video and Audio Downloader (WebEx)https://addons.mozilla.org/firefox/addon/youtube_downloader_webx/
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Auto-Sort BookmarksBookmarks Organizerhttps://addons.mozilla.org/firefox/addon/bookmarks-organizer/
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Better PrivacyClear Flash Cookieshttps://addons.mozilla.org/firefox/addon/clear-flash-cookies/
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NoScript Security SuiteuMatrixhttps://hackademix.net/2017/11/14/double-noscript/
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Right to ClickHappy Right Clickhttps://addons.mozilla.org/firefox/addon/%E5%BF%AB%E4%B9%90%E5%8F%B3%E9%94%AE/
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MinimaListRemindershttps://addons.mozilla.org/firefox/addon/reminders/
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Flip or Rotate ImageFoxyImagehttps://addons.mozilla.org/firefox/addon/foxyimage/
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Cookie TimeCookie AutoDeletehttps://addons.mozilla.org/en-US/firefox/addon/cookie-autodelete/
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Google Search by ImageSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Search Image by ImageSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Who Stole My PicturesSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Search Image EverywhereSearch by Image - Reverse Image Searchhttps://addons.mozilla.org/firefox/addon/search_by_image/
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Save Image in FolderSave Image to Downloadhttps://addons.mozilla.org/firefox/addon/save-image-2-downloads/
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ScrollyFoxAutoScrollinghttps://addons.mozilla.org/firefox/addon/autoscrolling/
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Double Click Closes TabClose Tab by Double Right Clickhttps://addons.mozilla.org/firefox/addon/close-tab-double-right-click/
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It's All TextWithExEditorhttps://addons.mozilla.org/firefox/addon/withexeditor/
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Speed Dial Group Speed Dial https://addons.mozilla.org/firefox/addon/groupspeeddial/
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Selenium Expert (Selenium IDE)Katalon Recorderhttps://addons.mozilla.org/firefox/addon/katalon-automation-record/
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Google Translator for FirefoxImTranslatorhttps://addons.mozilla.org/firefox/addon/imtranslator/
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Disable Ctrl-Q ShortcutDisable Ctrl-Q and Cmd-Qhttps://addons.mozilla.org/firefox/addon/disable-ctrl-q-and-cmd-q/
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CMD-Q CatcherDisable Ctrl-Q and Cmd-Qhttps://addons.mozilla.org/firefox/addon/disable-ctrl-q-and-cmd-q/
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Ctrl+Shift+Q QuitDisable Ctrl-Q and Cmd-Qhttps://addons.mozilla.org/firefox/addon/disable-ctrl-q-and-cmd-q/
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Tab CounterTab Counterhttps://addons.mozilla.org/en-US/firefox/addon/tab-counter-webext/
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Morning CoffeeMorning Coffee Quantumhttps://addons.mozilla.org/en-US/firefox/addon/morning-coffee-quantum/?src=ss
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Leo Search Leo Dictionarieshttps://addons.mozilla.org/firefox/addon/leo-dictionaries/
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selectivecookiedeleteForget Me Nothttps://addons.mozilla.org/firefox/addon/forget_me_not/
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Remove Cookie(s) for SiteForget Me Nothttps://addons.mozilla.org/firefox/addon/forget_me_not/
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YouTube ALL HTML5YouTube™ Flash-HTML5https://addons.mozilla.org/firefox/addon/youtube-flash-html5/
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TaboramaConexhttps://addons.mozilla.org/firefox/addon/conex/
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MeasureItMeasure-ithttps://addons.mozilla.org/firefox/addon/measure-it/