PasteUnformatted is an online tool that removes the formatting from any text that you paste into it. It is useful if you need to paste text from another source and don't want to keep the formatting that is included. The tool strips out any HTML tags, font styles, colors, and other formatting elements, leaving you with plain, unformatted text. It is an easy way to quickly remove formatting from text and make it easier to use in other applications.
PlainPaste
Copy Plain Text 2
Copy PlainText
Discontinued The extension is no longer updated since August 2016 and does not work in Firefox 57 and later versions. It still works on XUL-based Firefox forks such as https://alternativeapp.info/software/waterfox/ and https://alternativeapp.info/software/palemoon/