Free and useful Firefox browser add-ons (Rev: 2.9)

• AdBlock Plus v2.7.2 or higher version. [Update 24/3/2016]
  Install from https://update.adblockplus.org/latest/adblockplusfirefox.xpi
  Support browsers: Firefox, Chrome, Android, Opera, IE, Safari, Yandex Browser and Maxthon
  
  Adblock Plus blocks all annoying ads on the web by default, including video ads on YouTube, Facebook ads, flashy banners, pop-ups, pop-unders and much more. It allow acceptable Ads, disable tracking, disable malware domains, disable social media buttons, etc. AdBlock Plus is a pay-what-you-want software. You can donate to support their work.
  
  
  
• AutoPager v0.8.0.8 or higher version.
  Install from https://addons.mozilla.org/en-US/firefox/addon/autopager/
  Support browsers: Firefox, Google Chrome , Opera, Safari, Fennec and MicroB.
  Does not support Firefox Quantum v57 & higher version
  
  AutoPager is a Firefox extension which automatically loads the next page of a site inline when you reach the end of the current page for infinite scrolling of content. By default, AutoPager works with a ton of sites, including Lifehacker, The New York Times, Digg, eBay, Amazon, Yahoo, YouTube, Flickr, MSN, MySpace, Wikipedia, TaoBao, Twitter and Google. Useful in reading comics online where those comics websites normally shown only 1 image per page.
  
  However, AutoPager did not work on some of the comics sites. Hence, I have created a .bat file, 0_openMultipleTabsInFirefox_fromCommandLine.bat to automatically open multiple tabs in Firefox browser from DOS command line with URL in incremental sequence numbering.
  
  
  
• Clip to OneNote v4.0.rev649 or higher version.
  Install from https://addons.mozilla.org/en-US/firefox/addon/clip-to-onenote-legacy-edition/
  Support browsers: FireFox and ThunderBird
  Does not support Firefox Quantum v57 & higher version
  
  [Jack, 18 Feb 2018]
  OneNote Web Clipper by Microsoft OneNote will save anything on the web to OneNote. Clip it to OneNote, organize and edit it, then access it from any device
  
  
  "Clip to OneNote" is a free Firefox add-on that can send text, pictures and other data of a webpage to Microsoft Office OneNote with a single click.
  
  Note:
  
  To make this old add-on work in Firefox, you have to set the path to OneNote.exe. In Firefox browser, please click Tools -> Add-ons -> Extensions. Kindly select "Clip to OneNote" -> Options. Then, click the "Browse" button next to the "Path of ONENOTE.EXE" and kindly select the OneNote.exe file path from there.
  
  You need to point to the complete file path with the filename, eg: "C:\Program Files\Microsoft Office\Office12\ONENOTE.EXE" (Microsoft Office 2007) or
  "C:\Program Files\Microsoft Office\Office14\ONENOTE.EXE" (Microsoft Office 2010)
  
  
  Updating note on Clip to OneNote v4.3 or higher version:
  
  The new Clip to OneNote v4.3 or higher version require you to download and install a Clip to OneNote listener for Firefox in order to work properly. However, this listener require Java 7 to work properly.
  
  Recently, Java from Oracle has continuous flow of serious security holes that need to be fixed. Security experts have advised users to disable Java plugin or even to uninstall Java completely. I don't like the idea of opening a listener port number in my pc and using the insecure Java to make Clip to OneNote (especially in browser contexts) to work. I still prefer to use the old Clip to OneNote version that does not require a Clip to OneNote listener:
  
  
  Clip to OneNote (Legacy Edition) 4.0.rev649
  https://addons.mozilla.org/en-US/firefox/addon/clip-to-onenote-legacy-edition/
  
  
  
• ColorfulTabs v18.5 or higher version.
  Install from https://addons.mozilla.org/firefox/downloads/latest/1368/addon-1368-latest.xpi?src=dp-btn-primary
  Support browsers: FireFox
  
  ColorfulTabs is a Firefox extension that colors every tab in a different color and makes them easy to distinguish.
  
  In FireFox, kindly right-click on any tabs and go to "ColorfulTabs" -> "Options". In the "Colorful Tabs Options" -> "General", I chose to set the "Coloring Scheme" as "Generate Colors By Domain Hostname" so that all the tabs colour under the same domain will be the same colour. Please surf "ColorfulTabs documentation and help" for more information.
  
  

• FireShot - Webpage Screenshots: Capture + Annotate v0.98.31 or higher version.
  Install from https://addons.mozilla.org/en-US/firefox/addon/fireshot/
  
  Support browsers: Firefox, Chrome, Thunderbird, SeaMonkey and Internet Explorer.
  
  FireShot is a Firefox extension that captures, edits, annotates, organizes,
  exports, uploads and prints screenshots of your web pages. FireShot
  extension integrates with browsers to provide captures of either the entire web page or the currently visible area only or selected region. FireShot plugin also provides a set of editing and annotation tools, which let users quickly modify captures and insert text and graphical annotations. Screenshots can be saved to disk (PNG, GIF, JPEG, BMP), printed, copied to clipboard, e-mailed and sent to external editor for further processing.
  
  

• FlashBlock v1.5.17 or higher version
  Install from https://addons.mozilla.org/firefox/downloads/latest/433/addon-433-latest.xpi?src=cb-dl-mostpopular
  Support browser: Firefox 2.0 and newer version
  Does not support Firefox Quantum v57 & higher version

FlashBlock is a Firefox extension that blocks all Flash content (Macromedia Flash/Shockwave/Authorware) from loading in order to speed up the loading of a webpage. FlashBlock leaves placeholders on the webpage that allow you to click and view the Flash content. Flashblock does not work with Javascript disabled or with NoScript installed

• Greasemonkey v2.2 or higher version.
  Installing from https://addons.mozilla.org/en-US/firefox/addon/greasemonkey/?src=ss
  Support browser: FirefoxGreaseMonkey is a User Script Manager for Firefox that allows you to customize the way webpages look and function by using Javascript. After installing GreaseMonkey, you can start searching for free scripts at User Script Hosting.
  
  Recommended Scripts for GreaseMonkey
  
  Installation of a GreaseMonkey script file (More information at GreaseMonkey Manual > Installing Scripts):
• By clicking on a link on a web page, or
• Drag-and-drop a GreaseMonkey local script file into the Firefox browser window, or
• At the Firefox Menu Bar, click File > Open File... > Locating and selecting the GreaseMonkey local script file and click the OK button to load it.
  
  I have shared the below GreaseMonkey script files that I have downloaded from the closed website http://userscripts.org/. After downloading the GreaseMonkey script file, please check the downloaded GreaseMonkey script file content before using the above mentioned methods to install the GreaseMonkey script file.
• Hide Facebook ADs v4.
  Hides Facebook advertisements.
  
  
• Facebook AD Remover v1.0.
  Removes annoying Facebook advertisements and expands the newsfeed.
  
  
• Remove All Gmail ADs v1.3.
  Removes all advertisements in Gmail, including web clips.
  


• NetVideoHunter v1.9.5 or higher version.
  Install from https://addons.mozilla.org/firefox/downloads/file/129654/netvideohunter_video_downloader-1.9.1-fx.xpi?src=homepage
  Support browser: Firefox
  Does not support Firefox Quantum v57 & higher version
  
  NetVideoHunter is a free Firefox add-on that can download videos (.flv) and music (.mp3) from almost all video-sharing sites: YouTube, Google Video, MetaCafe, DailyMotion, Veoh, Blip.tv, etc.
  


• Print Edit v9.1 or higher versionInstall from https://addons.mozilla.org/firefox/downloads/latest/193270/addon-193270-latest.xpi?src=dp-btn-primary
  Support browser: Firefox
  Does not support Firefox Quantum v57 & higher version
  
  Allows editing of the web page content while in Print Preview mode. Editing the web page prior to printing can compact the layout and remove unwanted content such as adverts, sidebars and blank pages. Any element can be formatted, hidden or deleted.
  

• Web Developer v1.2.4 or higher version.
  Install from https://addons.mozilla.org/en-US/firefox/addon/web-developer/
  Support browsers: Firefox and Chrome.
  
  The Web Developer extension adds various web developer tools to a browser. If you surf a website and cannot right-click to copy the images, or cannot copy the content from a website, at the Firefox Web Developer Toolbar, please kindly click "Disable" -> "Disable Javascript" -> "All Javascript".