{"id":27666,"date":"2016-08-08T21:01:56","date_gmt":"2016-08-08T13:01:56","guid":{"rendered":"https:\/\/www.hongkiat.com\/blog\/?p=27666"},"modified":"2022-07-22T19:59:42","modified_gmt":"2022-07-22T11:59:42","slug":"hidden-firefox-settings","status":"publish","type":"post","link":"https:\/\/www.hongkiat.com\/blog\/hidden-firefox-settings\/","title":{"rendered":"10 Coolest Hidden Firefox Settings You Should Know"},"content":{"rendered":"<p>There are <strong>plenty of settings<\/strong> that Firefox offers besides general ones you can find in the Options menu. Many of these advanced settings can be found on <strong>specific browser pages<\/strong> that use the <a href=\"https:\/\/developer.mozilla.org\/en-US\/Firefox\/The_about_protocol\" target=\"_blank\" rel=\"noopener\"><code>about:<\/code><\/a> protocol. In this article, I\u2019m going to show you <strong>10 less-known Firefox settings<\/strong> that can come useful in your everyday workflow.<\/p>\n<p>When you visit any of the <code>about:<\/code> pages in the list below, and are prompted with a warning message, just click either the <span class=\"key\">OK<\/span> or the <span class=\"key\">I\u2019ll be careful, I promise!<\/span> button \u2014 whichever one you encounter.<\/p>\n<p class=\"recommended_top\">\n\t\t\t\t\t<strong>Read Also:<\/strong>\u00a0\n\t\t\t\t\t<a target=\"_blank\" href=\"https:\/\/www.hongkiat.com\/blog\/firefox-security-plugins\/\">10 Firefox Add-ons For Safer Browsing Experience<\/a>\n\t\t\t\t<\/p>\n<h3>1. Perform DNS Lookup<\/h3>\n<p>You can  perform an <strong>in-house DNS lookup<\/strong> (finding the IP address of a domain) in Firefox.<\/p>\n<p>Type <code>about:networking<\/code> into the URL bar, and press Enter. On the upcoming page, click \u201cDNS Lookup\u201d in the sidebar menu, type the domain name, and click <span class=\"key\">Resolve<\/span> to see its IP address(es).<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-dns.jpg\" alt=\"DNS Lookup\" width=\"645\" height=\"300\"><\/figure>\n<h3>2. Block Auto-Refresh<\/h3>\n<p>Sometimes web pages come with Refresh HTTP headers that make pages refresh frequently.<\/p>\n<p>If you want to stop that from happening, go to <code>about:preferences#advanced<\/code>, and under the subtitle Accessibility, check the checkbox labeled \u201cWarn me when websites try to redirect or reload the page\u201d.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-refresh.jpg\" alt=\"Auto-Refresh Setting\" width=\"650\" height=\"302\"><\/figure>\n<p class=\"recommended_top\">\n\t\t\t\t\t<strong>Read Also:<\/strong>\u00a0\n\t\t\t\t\t<a target=\"_blank\" href=\"https:\/\/www.hongkiat.com\/blog\/firefox-optimization-tips\/\">How to Optimize Firefox for Better Performance<\/a>\n\t\t\t\t<\/p>\n<h3>3. Search As You Type<\/h3>\n<p>Pressing <span class=\"key\">Ctrl<\/span>+<span class=\"key\">F<\/span> opens an in-page search-box in Firefox that allows users to search for a string in a webpage. But it\u2019s possible to  spare the key combo pressing and start searching as you start typing.<\/p>\n<p>In the \u201cAccessibility\u201d section of the <code>about:preferences#advanced<\/code> page check the checkbox labeled \u201cSearch for text when I start typing\u201d.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-search.jpg\" alt=\"Search As You Type setting\" width=\"650\" height=\"302\"><\/figure>\n<p>From now on, <strong>when you start typing, and the cursor isn\u2019t in a text input field on the page<\/strong>, Firefox will immediately start looking for the text on the web page.<\/p>\n<h3>4. Unmap Backspace Key<\/h3>\n<p>To prevent being surprised by someone trying to sneakily <em>backspace<\/em> their way into your browser history, you can <strong>replace the backspace action<\/strong> with one that scrolls the page up on pressing <span class=\"key\">Backspace<\/span>, scrolls it down on <span class=\"key\">Shift<\/span> + <span class=\"key\">Backspace<\/span>. You can also configure the <span class=\"key\">Backspace<\/span> key not to give any action at all.<\/p>\n<p>Go to <code>about:config<\/code>, and type <code>browser.backspace_action<\/code> into the search bar. The default value of this browser setting is <code>0<\/code>.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-backspace.jpg\" alt=\"Unmap Backspace Key setting\" width=\"649\" height=\"170\"><\/figure>\n<p>Double-click on it, and change it to <code>1<\/code> for <strong>mapping scrolling action<\/strong> to the <span class=\"key\">Backspace<\/span> key, or change it to <code>2<\/code> for <strong>unmapping it from any action<\/strong>.<\/p>\n<h3>5. Move Around With Cursor Keys<\/h3>\n<p>Reading a long article or story online, and want <strong>more control while jumping line<\/strong>? You can <strong>use the cursor for in-text navigation<\/strong>.<\/p>\n<p>Under \u201cAccessibility\u201d on the <code>about:preferences#advanced<\/code> page, check the option \u201cAlways use the cursor keys to navigate within pages\u201d.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-cursor.jpg\" alt=\"Move Around With Cursor Keys setting\" width=\"650\" height=\"302\"><\/figure>\n<p>Besides the default arrow cursor, a <strong>blinking text cursor<\/strong> will also appear on websites. You can move it around by using the arrow keys.<\/p>\n<h3>6. Paste On Middle Click<\/h3>\n<p>Got a mouse with a middle button? Use it to <strong>paste text from the clipboard<\/strong> into text fields on web pages.<\/p>\n<p>Go to <code>about:config<\/code>, and type <code>middlemouse.paste<\/code> into the search bar. The default value is <code>false<\/code>, double-click on it, and change it to <code>true<\/code>.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-middleclickpaste.jpg\" alt=\"Paste On Middle Click setting\" width=\"649\" height=\"170\"><\/figure>\n<h3>7. Customize  Print Header & Footer<\/h3>\n<p>When you print a web page in Firefox, it uses a <strong>default layout<\/strong>. At the top-left corner of the print page there\u2019s the title of the web page, at top-right the URL, at bottom-left the page number of total pages, and at bottom-right the date-time.<\/p>\n<p>You can <strong>change this arrangement<\/strong>, for instance you can add something to the center of the header or footer, remove some of the default info altogether, or replace them with your custom text.<\/p>\n<p>On the <code>about:config<\/code> page, there are <strong>six settings<\/strong> for the customization the print header and footer:<\/p>\n<ol>\n<li><code>print.print_headercenter<\/code><\/li>\n<li><code>print.print_headerleft<\/code><\/li>\n<li><code>print.print_headerright<\/code><\/li>\n<li><code>print.print_footercenter<\/code><\/li>\n<li><code>print.print_footerleft<\/code><\/li>\n<li><code>print.print_footerright<\/code><\/li>\n<\/ol>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-printheader.jpg\" alt=\"Print Header Custom Setting\" width=\"650\" height=\"170\"><\/figure>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-printfooter.jpg\" alt=\"Print Footer Custom Setting\" width=\"649\" height=\"170\"><\/figure>\n<p>You need to type the name of the setting from the above list into the search bar on the <code>about:config<\/code> page in order to change its value. The value can be <strong>any of the following strings, or your custom text<\/strong>:<\/p>\n<ol>\n<li><code>&D<\/code> \u2013 Date-time<\/li>\n<li><code>&P<\/code> \u2013 Page number<\/li>\n<li><code>&PT<\/code> \u2013 Page number of total pages<\/li>\n<li><code>&T<\/code> \u2013 Title of the web page<\/li>\n<li><code>&U<\/code> \u2013 URL<\/li>\n<\/ol>\n<h3>8. Change Default Colors<\/h3>\n<p>You have the option to <strong>change the default background, text, and link colors<\/strong> in Firefox.<\/p>\n<p>Go to <code>about:preferences#content<\/code>, click on the <span class=\"key\">Colors\u2026<\/span> in the \u201cFonts & Colors\u201d section, and select the new colors.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-color.jpg\" alt=\"Color Setting\" width=\"650\" height=\"302\"><\/figure>\n<h3>9. Filter Awesome Bar Links<\/h3>\n<p><a href=\"https:\/\/support.mozilla.org\/en-US\/kb\/awesome-bar-search-firefox-bookmarks-history-tabs\" target=\"_blank\" rel=\"noopener\">Awesome Bar<\/a>, the location bar of Firefox shows a list of links when you start typing. The displayed links are taken from your bookmarks, browser history and currently open pages.<\/p>\n<p>You can <strong>filter these Awesome Bar links<\/strong> by typing one of the following special characters into the location bar, either before your query or just on its own:<\/p>\n<ol>\n<li><code>#<\/code> \u2013 Match page title<\/li>\n<li><code>@<\/code> \u2013 Match URL<\/li>\n<li><code>*<\/code> \u2013 Match only to links in bookmarks<\/li>\n<li><code>^<\/code> \u2013 Match only to links in history<\/li>\n<li><code>+<\/code> \u2013 Match only to links that\u2019re tagged<\/li>\n<li><code>%<\/code> \u2013 Match only to links that are open currently<\/li>\n<\/ol>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-filteropentab1.jpg\" alt=\"Awesomebar with Open Tab Filter\" width=\"650\" height=\"170\"><\/figure>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-filteropentab2.jpg\" alt=\"Awesomebar with Open Tab Filter and Input\" width=\"650\" height=\"170\"><\/figure>\n<h3>10. Auto-Export Bookmarks In HTML<\/h3>\n<p>If you want Firefox to <strong>auto-save your bookmarks<\/strong> in HTML format as a list of links, you can do so by going to <code>about:config<\/code>, typing <code>browser.bookmarks.autoExportHTML<\/code> into the search bar, and changing the default <code>false<\/code> value to <code>true<\/code> by double-clicking on it.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/hidden-firefox-settings\/ffsetting-htmlbookmark.jpg\" alt=\"Bookmark Setting\" width=\"650\" height=\"170\"><\/figure>\n<p>When you restart your browser, a file named <code>bookmarks.html<\/code> will appear in your Firefox profile folder with all the bookmark links.<\/p>\n<p>To see your profile folder, go to <code>about:support<\/code>, and press the button <span class=\"key\">Show Folder<\/span>. Note that you may <strong>need to restart<\/strong> your whole system to make the change take effect.<\/p>\n<p>From now on, every time you exit Firefox, the <code>bookmarks.html<\/code> file will be updated with your current list of bookmarks.<\/p>","protected":false},"excerpt":{"rendered":"<p>There are plenty of settings that Firefox offers besides general ones you can find in the Options menu. Many of these advanced settings can be found on specific browser pages that use the about: protocol. In this article, I\u2019m going to show you 10 less-known Firefox settings that can come useful in your everyday workflow.&hellip;<\/p>\n","protected":false},"author":145,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3397],"tags":[34,316],"topic":[4521],"class_list":["entry-content","is-maxi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.8 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>10 Coolest Hidden Firefox Settings You Should Know - Hongkiat<\/title>\n<meta name=\"description\" content=\"There are plenty of settings that Firefox offers besides general ones you can find in the Options menu. 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