Block Unicode domains by Catshelf

To protect users from URL spoofing, issue a warning if the domain string is Unicode.

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About this extension

* This add-on protects against malware sites that spoof domain names in Unicode.
* When Unicode domain name URL was blocked, show 'BLK' badge.
* Clicking the icon, show 'Off' badge and suspends the block for one minute.
(Restart function after 1 minute to avoid forgetting to turn it back on.)

Developer comments

Listening 'webRequest.onBeforeRequest'. If URL matchs punycode, block redirect.

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