Once you have reproduced the issue, right-click anywhere on the grid of network requests, select Save all as HAR with Content, and save the file to your computer. Now try to reproduce the issue that you were experiencing before, while the network requests are being recorded.
#FIREFOX HAR VIEWER HOW TO#
Below is an example of how to access it, which adds a message to the Browser Console. Save the capture by right-clicking on the grid and choosing ' Save as HAR with Content '. If it's grey, click it once to start recording. One exported symbol from Console.jsm is console. Look for a round button at the top left of the Network tab. To use the console API from a traditional or bootstrapped add-on, get it from the Console module. If it is grey, click it once to start recording.Ĭheck the box 'Preserve Log' (If not checked).Ĭlick the Clear button to clear out any existing logs from the Network tab. The Browser Console displays messages logged by all Firefox add-ons. Select the Chrome menu > More Tools > Developer Tools.įind a round record button (Red Bubble) in the upper left corner of the tab, and make sure it is red. In our daily operation, we work on various browsers, here is how to generate HAR file in some popular browsers: When troubleshooting complex issues a HAR file helps to obtain supplemental information about the network requests that are generated in your browser while the issue/error occurs. It will capture objects, and response calls that a web page generates. HAR files are used to gather performance data from the end-user's web browser.
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