When you're blogging, writing WordPress content, composing long emails, or even writing here on Reddit, when your text becomes long enough and you suddenly need to replace a phrase in your text with another phrase, this extension allows you to do that with one click (similar to find & replace in, say, Google Docs).
You can also define text templates that you can later insert with a single click (this could be a blog template, an email signature, some HR email templates, or anything you can think of that you need to reuse often...
Chrome version: https://chrome.google.com/webstore/detail/find-replace-for-t...
Firefox version: https://addons.mozilla.org/en-GB/firefox/addon/find-replace-...