Selectively delete cookies

Cookies files can be selectively deleted in Firefox, so that we can delete useless cookies. Click the menu "Tools → Options", click "Privacy" on the left in the options dialog box, then click "Cookies" on the right, and click the "Stored Cookies" button in the displayed content. Then you can see all the cookies saved in the local computer in the pop-up window, select the ones you want to delete above, and then click the "Remove Cookies" button below to delete them. If you want to delete them all, click "Remove All" Cookie" button.

Firefox can also manage files downloaded directly with the browser. Clicking the menu "Tools → Download Items" will pop up the "Download Items" window. When downloading files with the browser, in The status of the downloaded file can be displayed here, and you can also click the button behind to pause or cancel the download of the file. Click the "Options" button in the window to set the directory where downloaded files are saved. If you want to clear the downloaded files displayed in the window, just click the "Organize" button in the window.