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+The most important Firefox command line options
+======
+The Firefox web browser supports a number of command line options that it can be run with to customize startup of the web browser.
+
+You may have come upon some of them in the past, for instance the command -P "profile name" to start the browser with the specified profile, or -private to start a new private browsing session.
+
+The following guide lists important command line options for Firefox. It is not a complete list of all available options, as many are used only for specific purposes that have little to no value to users of the browser.
+
+You find the [complete][1] listing of command line options on the Firefox Developer website. Note that many of the command line options work in other Mozilla-based products, even third-party programs, as well.
+
+### Important Firefox command line options
+
+![firefox command line][2]
+
+ **Profile specific options**
+
+  *  **-CreateProfile profile name** -- This creates a new user profile, but won't start it right away.
+  *  **-CreateProfile "profile name profile dir"** -- Same as above, but will specify a custom profile directory on top of that.
+  *  **-ProfileManager** , or **-P** -- Opens the built-in profile manager.
+  * - **P "profile name"** -- Starts Firefox with the specified profile. Profile manager is opened if the specified profile does not exist. Works only if no other instance of Firefox is running.
+  *  **-no-remote** -- Add this to the -P commands to create a new instance of the browser. This lets you run multiple profiles at the same time.
+
+
+
+ **Browser specific options**
+
+  *  **-headless** -- Start Firefox in headless mode. Requires Firefox 55 on Linux, Firefox 56 on Windows and Mac OS X.
+  *  **-new-tab URL** -- loads the specified URL in a new tab in Firefox.
+  *  **-new-window URL** -- loads the specified URL in a new Firefox window.
+  *  **-private** -- Launches Firefox in private browsing mode. Can be used to run Firefox in private browsing mode all the time.
+  *  **-private-window** -- Open a private window.
+  *  **-private-window URL** -- Open the URL in a new private window. If a private browsing window is open already, open the URL in that window instead.
+  *  **-search term** -- Run the search using the default Firefox search engine.
+  * - **url URL** -- Load the URL in a new tab or window. Can be run without -url, and multiple URLs separated by space can be opened using the command.
+
+
+
+Other options
+
+  *  **-safe-mode** -- Starts Firefox in Safe Mode. You may also hold down the Shift-key while opening Firefox to start the browser in Safe Mode.
+  *  **-devtools** -- Start Firefox with Developer Tools loaded and open.
+  *  **-inspector URL** -- Inspect the specified address in the DOM Inspector.
+  *  **-jsconsole** -- Start Firefox with the Browser Console.
+  *  **-tray** -- Start Firefox minimized.
+
+
+
+
+--------------------------------------------------------------------------------
+
+via: https://www.ghacks.net/2017/10/08/the-most-important-firefox-command-line-options/
+
+作者：[Martin Brinkmann][a]
+译者：[lujun9972](https://github.com/lujun9972)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]:https://www.ghacks.net/author/martin/
+[1]:https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options