Here are all the settings for maximum acceleration Firefox.
You can carry them by hand about:config or automatically create a file user.js in your profile: c:\Users\Ваш_пользователь\AppData\Roaming\Mozilla\Firefox\Profiles\Nabor_simvolov\

Файл: c:\Users\Ваш_пользователь\AppData\Roaming\Mozilla\Firefox\Profiles\Nabor_simvolov\user.js

/* Determines whether the downloaded files scanned for viruses internal system Firefox, which slows down the loading. This option does not apply to your antivirus that scans uploaded files always */ user_pref("browser.download.manager.scanWhenDone", false); user_pref("browser.sessionstore.max_concurrent_tabs", 10); /* If you do not need animation when opening tabs – turn off */ user_pref("browser.tabs.animate", false); user_pref("browser.tabs.closeWindowWithLastTab", false); /* A great option to switch between 2-me working with tabs CTRL+TAB keypad */ user_pref("browser.ctrlTab.previews", true); /* Open in a new tab search results from the search string */ user_pref("browser.search.openintab", true); user_pref("browser.bookmarks.max_backups", 1); user_pref("javascript.options.jitprofiling.chrome", true); user_pref("javascript.options.methodjit.chrome", true); user_pref("network.buffer.cache.size", 65536); user_pref("network.http.pipelining", true); user_pref("network.http.proxy.pipelining", true); user_pref("network.http.pipelining.maxrequests", 4); user_pref("network.http.pipelining.firstrequest", true); user_pref("network.dns.disableIPv6", true); /* Defines page rendering transitions , the lower , the more sharply with full rendering - optimally 50-100 */ user_pref("nglayout.initialpaint.delay", 50); user_pref("content.notify.interval", 500000); user_pref("content.notify.ontimer", true); user_pref("content.switch.threshold", 250000); user_pref("called content.interrupt.parsing", false); user_pref("browser.cache.memory.enable", true); user_pref("browser.cache.memory.capacity", 65536); // Caches in memory 5 last pages open in the current tab. user_pref("browser.sessionhistory.max_total_viewers", 7); user_pref("browser.browser.urlbar.maxRichResults", 6); user_pref("browser.sessionstore.max_tabs_undo", 5); user_pref("network.dnsCacheEntries", 200); user_pref("network.dnsCacheExpiration", 240); user_pref("network.http.connect.timeout", 60); 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", 12); user_pref("network.http.max-persistent-connections-per-server", 8); user_pref("content.notify.backoffcount", 5); // Allows you to start the download page a paste , and not wait until the upload images and other elements. user_pref("ui.submenuDelay", 0); // Specifies the full path to the config plugin (not just their names), that, in theory , affect the speed of the. user_pref("plugin.expose_full_path", true); user_pref("browser.sessionhistory.max_entries", 15); user_pref("browser.sessionstore.interval", 60000); user_pref("security.dialog_enable_delay", 0); user_pref("browser.cache.disk.enable", false); user_pref("config.trim_on_minimize", true); user_pref("browser.cache.memory.max_entry_size", 14336);