The reason why the mobile browser takes up a lot of memory may be because, for example, you can do anything on the browser, for example, you can brush some videos and watch TV dramas.

Well, reading novels, looking for pictures and so on, you will do it in the browser, and the more you use it, the more memory you occupy. You can go to the mobile phone housekeeper or file management to clean up, or you can restore the browser to its initial state in the settings.