Everyone knows that Firefox has firebug, whether it is debugging css or js is very good.
Do you know the debugging tools that come with Firefox?
Today we will talk about the debugging tools that come with Firefox
How to make users or their own debugging tools debug mobile phone stations?
1. Open Firefox, as shown in the following figure
2. Open the browser's tools menu and find "Developer Tools", see the following figure
3. Select the tool we want to use, see the following figure
After opening, the debugging tool that comes with Firefox is very similar to firebug
4. Turn on the debugging mode of the mobile device, see the following figure. At
this time, we see that the viewport of the page has changed. See the following figure.
The width of the viewport can be adjusted by itself through the slider on the right and below
5. You can get a new viewport size by modifying the display value above the drop-down menu, and can also save and delete
