10 Coolest Hidden Firefox Settings You Should Know
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
аbout: protocol. In this article, I’m going to show you 10 less-known Firefox settings that can come useful in your everyday workflow.
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When you visit any of the
аbout: pages in the list below, and are prompted with a warning message, just click either the OK or the I’ll be careful, I promise! button — whichever one you encounter.
1. Perform DNS Lookup
You can perform an in-house DNS lookup (finding the IP address of a domain) in Firefox.
аbout:networking into the URL bar, and press Enter. On the upcoming page, click "DNS Lookup” in the sidebar menu, type the domain name, and click Resolve to see its IP address(es).
2. Block Auto-Refresh
Sometimes web pages come with Refresh HTTP headers that make pages refresh frequently.
If you want to stop that from happening, go to
аbout:preferences#advanced, and under the subtitle Accessibility, check the checkbox labeled "Warn me when websites try to redirect or reload the page”.
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3. Search As You Type
Pressing Ctrl+F opens an in-page search-box in Firefox that allows users to search for a string in a webpage. But it’s possible to spare the key combo pressing and start searching as you start typing.
In the "Accessibility” section of the
аbout:preferences#advanced page check the checkbox labeled "Search for text when I start typing”.
From now on, when you start typing, and the cursor isn’t in a text input field on the page, Firefox will immediately start looking for the text on the web page.
4. Unmap Backspace Key
To prevent being surprised by someone trying to sneakily backspace their way into your browser history, you can replace the backspace action with one that scrolls the page up on pressing Backspace, scrolls it down on Shift + Backspace. You can also configure the Backspace key not to give any action at all.
аbout:config, and type
browser.backspace_action into the search bar. The default value of this browser setting is
Double-click on it, and change it to
1 for mapping scrolling action to the Backspace key, or change it to
2 for unmapping it from any action.
5. Move Around With Cursor Keys
Reading a long article or story online, and want more control while jumping line? You can use the cursor for in-text navigation.
Under "Accessibility” on the
аbout:preferences#advanced page, check the option "Always use the cursor keys to navigate within pages”.
Besides the default arrow cursor, a blinking text cursor will also appear on websites. You can move it around by using the arrow keys.
6. Paste On Middle Click
Got a mouse with a middle button? Use it to paste text from the clipboard into text fields on web pages.
аbout:config, and type
middlemouse.paste into the search bar. The default value is
false, double-click on it, and change it to
7. Customize Print Header & Footer
When you print a web page in Firefox, it uses a default layout. At the top-left corner of the print page there’s 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.
You can change this arrangement, 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.
аbout:config page, there are six settings for the customization the print header and footer:
You need to type the name of the setting from the above list into the search bar on the
аbout:config page in order to change its value. The value can be any of the following strings, or your custom text:
&P– Page number
&PT– Page number of total pages
&T– Title of the web page
8. Change Default Colors
You have the option to change the default background, text, and link colors in Firefox.
аbout:preferences#content, click on the Colors… in the "Fonts & Colors” section, and select the new colors.
9. Filter Awesome Bar Links
Awesome Bar, 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.
You can filter these Awesome Bar links by typing one of the following special characters into the location bar, either before your query or just on its own:
#– Match page titl
@– Match URL
*– Match only to links in bookmarks
^– Match only to links in history
+– Match only to links that’re tagged
%– Match only to links that are open currently
10. Auto-Export Bookmarks In HTML
If you want Firefox to auto-save your bookmarks in HTML format as a list of links, you can do so by going to
browser.bookmarks.autoExportHTML into the search bar, and changing the default
false value to
true by double-clicking on it.
When you restart your browser, a file named
bookmarks.html will appear in your Firefox profile folder with all the bookmark links.
To see your profile folder, go to
аbout:support, and press the button Show Folder. Note that you may need to restart your whole system to make the change take effect.
From now on, every time you exit Firefox, the
bookmarks.html file will be updated with your current list of bookmarks...(Extraido Desde hongkiat.com)...