No Miner is a free Chrome extension developed by JustBrandonT. It falls under the category of Browsers and is specifically listed as an Add-ons & Tools subcategory. The main purpose of this extension is to analyze a webpage's JavaScript files and block any coin mining activities.

With the No Miner extension installed, it effectively blocks coin miners from websites both before and after they load. The latest version, v1.0.4, includes several notable features and improvements.

In v1.0.1, a background content blocker was added. This blocker scans JavaScript requests for coin miners and cancels the requests. It then instructs the content blocker to remove the script from the webpage, effectively blocking self-hosted miners and proxy-miners.

In v1.0.2, a settings page was introduced, allowing users to add whitelisted URL patterns. Users can define specific patterns using regular expressions to exclude certain URLs from being scanned. Additionally, new patterns were added to block Base64 encoded JavaScript miners, which were a workaround to the plugin. This update ensures that everything is blocked again.

In v1.0.3, a bug in Firefox and Chrome was fixed, which caused the webRequest.onBeforeRequest to not cancel the download of bad files. To resolve this issue, the scanning process was made synchronous instead of asynchronous, resulting in a slightly slower but more effective solution.

Finally, in v1.0.4, a bug in the code was fixed, which caused some whitelisted sites to still be scanned and blocked. To aid in troubleshooting, the developer added debugging code that prints exactly what was blocked and what was allowed to the developer's console.

No Miner is a valuable tool for Chrome users who want to protect themselves from coin mining activities on websites. With its regular updates and bug fixes, it provides an effective solution to combat the growing issue of unwanted coin mining.