// Turn on "Tab Previews" feature
user_pref("browser.allTabs.previews", true);
// Don't go back in history if backspace is pressed
user_pref("browser.backspace_action", 2);
// Turn on advanced "Tab Previews" which runs by CTRL+TAB
user_pref("browser.ctrlTab.previews", true);
// Don't use the most-recently-opened order in "Tab Previews"
user_pref("browser.ctrlTab.recentlyUsedLimit", 0);
// Enable JavaScript dump() output
user_pref("browser.dom.window.dump.enabled", true);
// Don't pop-up a note when all the downloads are complete
user_pref("browser.download.manager.showAlertOnComplete", false);
// Always ask where to save downloaded files
user_pref("browser.download.useDownloadDir", false);
// Delete the downloaded files from the Temp folder
user_pref("browser.helperApps.deleteTempFileOnExit", true);
// Force all new windows opened by JavaScript to load in the tabs
user_pref("browser.link.open_newwindow.restriction", 0);
// Don't pop-up "Know your rights"
user_pref("browser.rights.3.shown", true);
// Set Yandex as default search engine
user_pref("browser.search.defaultenginename", "Яндекс");
// Log debugging information about the search service to the JavaScript Console and stdout.
user_pref("browser.search.log", true);
// A search performed through the search bar opens a new tab, instead of using the currently active one
user_pref("browser.search.openintab", true);
// Use the sorting order of search engines definied by the user
user_pref("browser.search.useDBForOrder", true);
// Stalled (unloaded/hibernated) tabs will get loaded only on demand
user_pref("browser.sessionstore.restore_on_demand", true);
// Don't check if the browser is set as default one in the system
user_pref("browser.shell.checkDefaultBrowser", false);
// Restore the previous session when browser starts
user_pref("browser.startup.page", 3);
// Don't show Sync promos
user_pref("browser.syncPromoViewsLeft", 0);
// Don't hide the tab-bar if there is only one tab
user_pref("browser.tabs.autoHide", false);
// Close buttons on tabs (2 to hide them all, 1 to always display)
// user_pref("browser.tabs.closeButtons", 2);
// Closing last tab shouldn't cause the window closure
user_pref("browser.tabs.closeWindowWithLastTab", false);
// Tabs get opened related (near each other)
user_pref("browser.tabs.insertRelatedAfterCurrent", true);
// Open bookmarks in background
user_pref("browser.tabs.loadBookmarksInBackground", true);
// Open new tabs in background
user_pref("browser.tabs.loadDivertedInBackground", true);
// Don't warn if opening many tabs (doing so may cause high resources consumption)
user_pref("browser.tabs.warnOnOpen", false);
// Don't trim the URLs
user_pref("browser.urlbar.trimURLs", false);
// Forbid sites to move/resize browser's window
user_pref("dom.disable_window_move_resize", true);
// Forbid sites to hide status bar
user_pref("dom.disable_window_open_feature.status", false);
// Forbid sites to lock window's size
user_pref("dom.disable_window_open_feature.resizable", false);
// Forbid sites to hide location bar
user_pref("dom.disable_window_open_feature.location", false);
// Forbid geo location aware browsing
user_pref("geo.enabled", false);
// Don't show the wardning when opening about:config
user_pref("general.warnOnAboutConfig", false);
// Double-clicking a word won't highlight the space after it
user_pref("layout.word_select.eat_space_to_next_word", false);
// Middle-mouse click on a text field will paste the text copied before
user_pref("middlemouse.paste", true);
// In about:plugins and navigator.plugins, reveal the full path to plugin files
user_pref("plugin.expose_full_path", true);
// Do not locate plugins by the directories specified in the Windows registry for PLIDs (currently HKLM\Software\MozillaPlugins\xxxPLIDxxx\Path)
user_pref("plugin.scan.plid.all", false);
// Tell sites I don't want to be tracked
user_pref("privacy.donottrackheader.enabled", true);
// Wrap long lines when viewing page's source code
user_pref("view_source.wrap_long_lines", true);

// Fast Computer Fast Connection
//user_pref("network.http.pipelining", true);
//user_pref("network.http.proxy.pipelining", true);
//user_pref("network.http.pipelining.maxrequests", 8);
//user_pref("content.notify.backoffcount", 5);
//user_pref("ui.submenuDelay", 0);
//user_pref("content.interrupt.parsing", true);
//user_pref("content.max.tokenizing.time", 2250000);
//user_pref("content.notify.interval", 500000);
//user_pref("content.notify.ontimer", true);
//user_pref("content.switch.threshold", 750000);
//user_pref("nglayout.initialpaint.delay", 0);
//user_pref("network.http.max-connections", 48);
//user_pref("network.http.max-connections-per-server", 16);
//user_pref("network.http.max-persistent-connections-per-proxy", 16);
//user_pref("network.http.max-persistent-connections-per-server", 8);
//user_pref("browser.cache.memory.capacity", 65536);

// [insecure!] Don't warn when opening a downloaded *.exe file
user_pref("browser.download.manager.alertOnEXEOpen", false);
// [insecure!] Don't scan the downloaded files
user_pref("browser.download.manager.scanWhenDone", false);
// Turn off the Phishing Protection and don't connect to the "Safebrowsing provider" (default is Google)
user_pref("browser.safebrowsing.enabled", false);
// Don't block reported attack sites and don't connect to the "Safebrowsing provider" (default is Google)
user_pref("browser.safebrowsing.malware.enabled", false);
// [troublesome!]  Forbid sites to disable right click to open browser's context menu 
user_pref("dom.event.contextmenu.enabled", false);
// [insecure!] Don't display a dialog warning the user when a page has both encrypted and non-encrypted content
user_pref("security.warn_viewing_mixed", false);
// [insecure!] Don't leave the "Alert me whenever..." box unchecked on the security warning dialog
user_pref("security.warn_viewing_mixed.show_once", false);