Scrollbar Search Highlighter is a web-based application that allows users to quickly and easily highlight any text on webpages they are viewing. It is a useful tool for researchers, bloggers, journalists, and anyone who needs to quickly search, highlight, and copy text from webpages. The app has a simple user-interface and uses a simple drag-and-drop technique for highlighting text. It also has an advanced search feature which allows users to search for specific phrases or words and then easily highlight them with one click. Additionally, it allows users to save their highlighted text to their computer or mobile device for later reference.
Discontinued The extension is not compatible with Firefox 57. It still works on XUL-based Firefox forks such as https://alternativeapp.info/software/waterfox/ and https://alternativeapp.info/software/palemoon/.
Wired-Marker does not highlight search results in the scroll bar.
Discontinued It appears that the extension is no longer in development and is not compatible with Firefox 57 and later versions. The extension still works in XUL-based Firefox forks such as https://alternativeapp.info/software/waterfox/ and https://alternativeapp.info/software/palemoon/.
Discontinued The developer announced that it will not port the extension to WebExtensions: https://github.com/legege/searchwp/issues/113 The latest version, released in September 2016, still works on XUL-based Firefox forks such as https: //alternativeapp.info/software/waterfox/ and https://alternativeapp.info/software/palemoon/
FindBar Tweak
Wired-Marker
Context Highlight
SearchWP
Discontinued The add-on will no longer receive updates and will stop working next November with Firefox 57, when XUL-based add-ons will be deprecated in favor of the WebExtensions API. See http://fasezero.com/. The extension still works in XUL-based Firefox forks such as https://alternativeapp.info/software/waterfox/.