This web content provides a list of useful browser debugger hacks that may not be immediately obvious to intermediate-level or higher developers. One such hack is the use of advanced conditional breakpoints, where expressions with side effects can be used to extract extra functionality from basic features. Other hacks include using logpoints to log messages to the console without pausing execution, using the watch pane to log specific values, and tracing callstacks to find the source of unpaired function calls. The content also covers manipulating program behavior, quick performance profiling, pausing execution based on various conditions, and debugging HTML/CSS. It is important to note that some of these hacks may be controversial or not supported by all browsers.
https://alan.norbauer.com/articles/browser-debugging-tricks