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Checks websites that you visit for invisible zero-width characters and replaces them with a specified character. Has the ability to copy all the characters found.

Simple functionality focused add-on used for detecting zero-width characters (invisible characters) which might be used for tracking you online.

Functions:
- Manually preform a scan on a page
- Copy all zero-width characters found
- Specify custom string to replace zero-width characters found (can input nothing to strip them)
- Whitelist domains you trust or that might break from the add-on
- Option for checking any copied text for zero-width characters
- Option to scan a page again when tab becomes active

Want to contribute to the project or just see the source code and how it works?
You can do both on GitHub: https://github.com/mikkel1156/ZeroWidth-Detection-Firefox