Check NoFollow Backlink add on is provide you to find url which is no follow link in any webpage . you can clearly see red border around anchor link which is no follow link

Check Nofollow Backlink - Find NoFollow Links
Check Nofollow Backlink is a Firefox add-on that allows users to identify and locate nofollow links on any webpage by displaying a red border around the anchor link.
Add-on stats
Full description: See detailed description
Ranking
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
Add-on safety
Risk impact
Check Nofollow Backlink requires a few sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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- Low ******* ****** ** *** ********* ********
Risk likelihood
Check Nofollow Backlink has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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