Unused CSS finder crawls your website (following all the internal links), analyses all the pages and provides a list of unused css-selectors found in your stylesheets.
Jitbit's Email List Cleaner lets you clean UNLIMITED email lists. The cleaner removes duplicates, malformed emails, disposable mailboxes (like Mailinator or Maildrop), non-existing domains and domains with invalid MX records (i.e. no email server present) etc.
AutoText inserts a frequently used phrase when you type an abbreviation. Works in any software (text editor, internet browser etc.). It's a great Windows alternative for the famous "Text Expander" on the Mac.
See if the current page you're visiting has ever been submitted to HackerNews. If it was - shows the number of upvotes and allows to quickly read the HN comments.
Bonus feature: if the current page is not on HackerNews yet, submit it from within the extension
No plugins, no Chrome extensions, just a modern browser required. Click a button to record the screen (or a specific app), then click another button to share the video online via File.io, Imgur or Dropbox. Or just download it privately.
