YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.
Select some text, right-click and choose"Search image" in the menu, a Google Image tab will open with your results.
This add-on renders standalone images on a transparent background, so you can see the image in all its glory!
Tons of features to improve your user experience on YouTube™.
ADV-Lite - free & fast advertise blocker.
Take a screenshot from the entire webpage with one click.
Displays player controls for video content on Instagram. Because why isn't that already a feature?
This extension adds 'Original' buttons to open images in original size on Twitter (https://twitter.com/*) or on TweetDeck (https://tweetdeck.twitter.com/). When there are multiple images, they are displayed on a single tab.
Lets you fix annoying sound problems in YouTube videos and such. Like audio in one channel only, too quiet or too loud. (Unfortunately, doesn't work on many other websites because of cross-domain issues — but it does work on YouTube.com!)
Take a screenshot of the current web page, add annotations if needed, and save it as an image in HD.
Play YouTube™ Videos in the Highest or Lowest Available Quality
Use this extension to digitally sign any pdf managed by Docutracks.