it easier to decide if the pop-up should be displayed. Private browsing Private browsing was introduced in Firefox 3.5, which released on June 30, 2009. This feature lets users browse the Internet without leaving any traces in the browsing history. Download manager An integrated customizable download manager is also included. Downloads can be opened automatically depending on the file type, or saved directly to a disk. By default, Firefox downloads all files to a user's desktop on Mac and Windows or to the user's home directory on Linux, but it can be configured to prompt for a specific download location. Version 3.0 added support for cross-session resuming (stopping a download and resuming it after closing the browser). From within the download manager, a user can view the source URL from which a download originated as well as the location to which a file was downloaded. Live bookmarks From 2004, live bookmarks allowed users to dynamically monitor changes to their favorite news sources, using RSS or Atom feeds. Instead of treating RSS-feeds as HTML pages as most news aggregators do, Firefox treated them as bookmarks and automatically updated them in real-time with a link to the appropriate source. In December 2018, version 64.0 of Firefox removed live bookmarks and web feeds, with Mozilla suggesting its replacement by add-ons or other software with news aggregator functionality like Mozilla Thunderbird. Other features Find as you type Firefox also has an incremental find feature known as "Find as you type", invoked by pressing Ctrl+F. With this feature enabled, a user can simply begin typing a word while viewing a web page, and Firefox automatically searches for it and highlights the first instance found. As the user types more of the word, Firefox refines its search. Also, if the user's exact query does not appear anywhere on the page, the "Find" box turns red. Ctrl+G can be pressed to go to the next found match. Alternatively the slash (/) key can be used instead to invoke the "quick search". The "quick search", in contrast to the normal search, lacks search controls and is wholly controlled by the keyboard. In this mode highlighted links can be followed by pressing the enter key. The "quick search" has an alternate mode which is invoked by pressing the apostrophe (') key, in this mode only links are matched. Mycroft Web Search A built-in Mycroft Web search function features extensible