Added documentation with images to the Network Monitor [Filtering requests](https://developer.mozilla.org/en-US/docs/Tools/Network_Monitor/request_list#Filtering_requests) page because I felt that might be the easiest place to find it.
Bug 1151368 Comment 30 Edit History
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Added documentation with images to the Network Monitor [Filtering requests](https://developer.mozilla.org/en-US/docs/Tools/Network_Monitor/request_list#Filtering_requests) page because I felt that might be the easiest place to find it. Also added this feature to [Firefox 68 for developers](https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/68) The Network monitor request list allows you to block a specific URL (bug 1151368).