Simulate Network Latency Firefox

Open the dev tools ctrl shift i or f12 and switch to the network tab.

Simulate network latency firefox.

On the right you should see a label called no throttling. Are you looking for a windows network tool that can emulate packet loss and or latency. Pick one of the presets available there. It allows you to configure the network latency for the inbound and the outbound connection and you don t need to install.

Firefox devtools has now a network throttling tool to simulate slow connections so you can get a rough idea of the user experience under different connection types bug 1283453. Press the responsive design mode button in the toolbox s toolbar. From the developer tools toolbox. The answer is clumsy.

Inside the dropdown you will find a few presets and an option to add your own download upload latency settings. Select responsive design mode from the web developer submenu in the firefox menu or tools menu if you display the menu bar or are on macos. On the right of the row right below the dev tool tabs you will find an option which reads no throtteling by default. If you click on that you ll get a dropdown list of a pre configured speeds that you can use to simulate a slow connection.

Now go ahead and click on the network tab. Clumsy makes your network condition on windows significantly worse but in a managed and interactive manner. The toolbar includes a throttling dropdown which allows you to throttle your network speed to emulate various different network speed conditions. Press ctrl shift m or cmd opt m on macos.

From the firefox menu. To do this click on the three vertical dots and then click on the middle dock position.