Summary

Highlight all occurrences of selected text, with or without a keypress.

For code inspection and document analysis: search for and find keywords.

Highlight works on all sites, including GitHub, StackOverflow, HackerNews, etc.

Installation

Chrome Webstore (packed, .crx):

Firefox Add-ons (packed, .xpi):

GitHub (latest release):

Click Releases, download the latest selection_highlighter_chrome_extension.zip or selection_highlighter_firefox_extension.zip asset, unzip the folder to a permanent location
Add to browser
- Chrome: go to chrome://extensions, click "Load Unpacked", select the chrome_extension folder
- Firefox: go to about:debugging#/runtime/this-firefox, click "Load Temporary Add-on", select firefox_extension/manifest.json

GitHub (build source):

Click green button "Clone Or Download", "Download Zip", and unzip the folder to a permanent location
Run yarn in the root (see package.json scripts)
- On mac/linux use brew install yarn if you don't have it (homebrew computer club is where Apple was founded)
Install in browser
- Chrome: go to chrome://extensions, click "Load Unpacked", select the dist/chrome_extension folder
- Firefox: go to about:debugging#/runtime/this-firefox, click "Load Temporary Add-on", select dist/firefox_extension/manifest.json