Finding patterns is a developer tools chrome extension. it's a free extension , it has 486 active users since released its first version, it earns an average rating of 3.20 from 5 rated user, last update is 4098 days ago.
This extension aims to help you to find bugs on your webpage. Also, it can show you any text you need to know. It is useful when your webpage replaces tags such #LIST_OF_PRODUCTS#. There times that tags are hidden (for example in a link title, JS, CSS or AJAX code). With Finding patterns you will find quickly all of them. You can use your own regular expressions so you can find any pattern you need.
You could download the latest version crx file or older version files and install it.
English.
50% user give 3-star rating, 50% user give 2-star rating. Read reviews of finding patterns
You could find more help information from finding patterns support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of finding patterns.
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Would be nice if you didn't have to go to the options page if you only want a temporary regex, bur I can see where that might not be possible. Also, as I just found out, be sure to deactivate it before you get to Youtube (unless you only want to watch ads).
I have no idea how to activate this as there is no tutorial.