Rongzhou: /* Tabs, beyond shortcuts */

2026-08-25T11:44:28Z

Tabs, beyond shortcuts

← Older revision		Revision as of 11:44, 25 August 2026
Line 119:		Line 119:
	\|}		\|}

	== ~~Tabs, beyond~~ shortcuts ==		== Mouse shortcuts ==

	* Middle-click a '''link''' — opens it in a new tab (in the background).		* Middle-click a '''link''' — opens it in a new tab (in the background).
Line 126:		Line 126:
	* Right-click a tab → '''Mute Tab''' — silence that tab's audio.		* Right-click a tab → '''Mute Tab''' — silence that tab's audio.
	* Drag a tab to reorder it; drag it out of the window to open a separate window.		* Drag a tab to reorder it; drag it out of the window to open a separate window.

			== Syncing user data and configs between devices ==

			See [https://support.mozilla.org/en-US/kb/how-do-i-know-status-my-sync official docs]

	== about: pages ==		== about: pages ==

Rongzhou at 09:43, 25 August 2026

2026-08-25T09:43:16Z

← Older revision		Revision as of 09:43, 25 August 2026
Line 2:		Line 2:

	Firefox is a free and open-source web browser by the Mozilla Foundation. This cheatsheet covers what most people reach for every day: the address bar, keyboard shortcuts, and the built-in <syntaxhighlight lang="text" inline>about:</syntaxhighlight> pages.		Firefox is a free and open-source web browser by the Mozilla Foundation. This cheatsheet covers what most people reach for every day: the address bar, keyboard shortcuts, and the built-in <syntaxhighlight lang="text" inline>about:</syntaxhighlight> pages.

	~~<blockquote>~~
	Shortcuts are listed as '''Windows / Linux''', with the '''macOS''' equivalent in the next column. On macOS, <syntaxhighlight lang="text" inline>Ctrl</syntaxhighlight> becomes <syntaxhighlight lang="text" inline>Cmd</syntaxhighlight> and <syntaxhighlight lang="text" inline>Alt</syntaxhighlight> becomes <syntaxhighlight lang="text" inline>Option</syntaxhighlight>.
	~~</blockquote>~~

	== Basic example: the address bar ==		== Basic example: the address bar ==

RonzzWikiCowriterAI: New Firefox cheatsheet: address bar, keyboard shortcuts, about: pages, about:config, command line. AI-assisted (RonzzWikiCowriter) (via create-page on MediaWiki MCP Server)

2026-08-25T09:29:29Z

New Firefox cheatsheet: address bar, keyboard shortcuts, about: pages, about:config, command line. AI-assisted (RonzzWikiCowriter) (via create-page on MediaWiki MCP Server)

New page

{{Cheatsheet}}

Firefox is a free and open-source web browser by the Mozilla Foundation. This cheatsheet covers what most people reach for every day: the address bar, keyboard shortcuts, and the built-in <syntaxhighlight lang="text" inline>about:</syntaxhighlight> pages.

<blockquote>
Shortcuts are listed as '''Windows / Linux''', with the '''macOS''' equivalent in the next column. On macOS, <syntaxhighlight lang="text" inline>Ctrl</syntaxhighlight> becomes <syntaxhighlight lang="text" inline>Cmd</syntaxhighlight> and <syntaxhighlight lang="text" inline>Alt</syntaxhighlight> becomes <syntaxhighlight lang="text" inline>Option</syntaxhighlight>.
</blockquote>

== Basic example: the address bar ==

The address bar is both a URL field and a search box — it guesses what you mean as you type:

{| class="wikitable"
! You type !! What happens
|-
| <syntaxhighlight lang="text" inline>wikibase.ronzz.org</syntaxhighlight> || navigates there; the scheme (<syntaxhighlight lang="text" inline>https://</syntaxhighlight>) is filled in for you
|-
| <syntaxhighlight lang="text" inline>ronzz wiki</syntaxhighlight> || searches with your default engine; suggestions from history, bookmarks and open tabs drop down as you type
|-
| <syntaxhighlight lang="text" inline>@wikipedia firefox</syntaxhighlight> || searches Wikipedia directly — <syntaxhighlight lang="text" inline>@</syntaxhighlight> lets you pick a search engine
|-
| <syntaxhighlight lang="text" inline>^ronzz</syntaxhighlight> || only browsing history (<syntaxhighlight lang="text" inline>^</syntaxhighlight>)
|-
| <syntaxhighlight lang="text" inline>*ronzz</syntaxhighlight> || only bookmarks (<syntaxhighlight lang="text" inline>*</syntaxhighlight>)
|-
| <syntaxhighlight lang="text" inline>%ronzz</syntaxhighlight> || only open tabs (<syntaxhighlight lang="text" inline>%</syntaxhighlight>)
|-
| <syntaxhighlight lang="text" inline>#ronzz</syntaxhighlight> || only titles and bookmark tags (<syntaxhighlight lang="text" inline>#</syntaxhighlight>)
|}

Press <syntaxhighlight lang="text" inline>Ctrl+K</syntaxhighlight> / <syntaxhighlight lang="text" inline>Cmd+K</syntaxhighlight> first to force the next thing you type to be a search.

== Keyboard shortcuts ==

=== Tabs and windows ===

{| class="wikitable"
! Action !! Windows / Linux !! macOS
|-
| New tab || <syntaxhighlight lang="text" inline>Ctrl+T</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+T</syntaxhighlight>
|-
| New window || <syntaxhighlight lang="text" inline>Ctrl+N</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+N</syntaxhighlight>
|-
| New private window || <syntaxhighlight lang="text" inline>Ctrl+Shift+P</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+P</syntaxhighlight>
|-
| Close tab || <syntaxhighlight lang="text" inline>Ctrl+W</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+W</syntaxhighlight>
|-
| Close window || <syntaxhighlight lang="text" inline>Ctrl+Shift+W</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+W</syntaxhighlight>
|-
| Reopen closed tab || <syntaxhighlight lang="text" inline>Ctrl+Shift+T</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+T</syntaxhighlight>
|-
| Next / previous tab || <syntaxhighlight lang="text" inline>Ctrl+Tab</syntaxhighlight> / <syntaxhighlight lang="text" inline>Ctrl+Shift+Tab</syntaxhighlight> || <syntaxhighlight lang="text" inline>Ctrl+Tab</syntaxhighlight> / <syntaxhighlight lang="text" inline>Ctrl+Shift+Tab</syntaxhighlight>
|-
| Tab 1–8, last tab || <syntaxhighlight lang="text" inline>Ctrl+1</syntaxhighlight> … <syntaxhighlight lang="text" inline>Ctrl+8</syntaxhighlight>, <syntaxhighlight lang="text" inline>Ctrl+9</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+1</syntaxhighlight> … <syntaxhighlight lang="text" inline>Cmd+8</syntaxhighlight>, <syntaxhighlight lang="text" inline>Cmd+9</syntaxhighlight>
|}

=== Navigation and search ===

{| class="wikitable"
! Action !! Windows / Linux !! macOS
|-
| Address bar || <syntaxhighlight lang="text" inline>Ctrl+L</syntaxhighlight> (also <syntaxhighlight lang="text" inline>Alt+D</syntaxhighlight>) || <syntaxhighlight lang="text" inline>Cmd+L</syntaxhighlight>
|-
| Search the web || <syntaxhighlight lang="text" inline>Ctrl+K</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+K</syntaxhighlight>
|-
| Find in page || <syntaxhighlight lang="text" inline>Ctrl+F</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+F</syntaxhighlight>
|-
| Find next / previous || <syntaxhighlight lang="text" inline>Ctrl+G</syntaxhighlight> / <syntaxhighlight lang="text" inline>Ctrl+Shift+G</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+G</syntaxhighlight> / <syntaxhighlight lang="text" inline>Cmd+Shift+G</syntaxhighlight>
|-
| Reload || <syntaxhighlight lang="text" inline>Ctrl+R</syntaxhighlight> or <syntaxhighlight lang="text" inline>F5</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+R</syntaxhighlight>
|-
| Hard reload (skip cache) || <syntaxhighlight lang="text" inline>Ctrl+Shift+R</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+R</syntaxhighlight>
|-
| Stop loading || <syntaxhighlight lang="text" inline>Esc</syntaxhighlight> || <syntaxhighlight lang="text" inline>Esc</syntaxhighlight>
|-
| Back / forward || <syntaxhighlight lang="text" inline>Alt+←</syntaxhighlight> / <syntaxhighlight lang="text" inline>Alt+→</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+[</syntaxhighlight> / <syntaxhighlight lang="text" inline>Cmd+]</syntaxhighlight>
|-
| Full screen || <syntaxhighlight lang="text" inline>F11</syntaxhighlight> || <syntaxhighlight lang="text" inline>Ctrl+Cmd+F</syntaxhighlight>
|-
| Reader view || <syntaxhighlight lang="text" inline>F9</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Option+R</syntaxhighlight>
|}

=== Page actions ===

{| class="wikitable"
! Action !! Windows / Linux !! macOS
|-
| Bookmark this page || <syntaxhighlight lang="text" inline>Ctrl+D</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+D</syntaxhighlight>
|-
| Bookmarks sidebar || <syntaxhighlight lang="text" inline>Ctrl+B</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+B</syntaxhighlight>
|-
| Bookmarks toolbar (show/hide) || <syntaxhighlight lang="text" inline>Ctrl+Shift+B</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+B</syntaxhighlight>
|-
| Library (bookmarks manager) || <syntaxhighlight lang="text" inline>Ctrl+Shift+O</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+O</syntaxhighlight>
|-
| History || <syntaxhighlight lang="text" inline>Ctrl+H</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+H</syntaxhighlight>
|-
| Downloads || <syntaxhighlight lang="text" inline>Ctrl+J</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+J</syntaxhighlight>
|-
| Add-ons manager || <syntaxhighlight lang="text" inline>Ctrl+Shift+A</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+A</syntaxhighlight>
|-
| Save page as || <syntaxhighlight lang="text" inline>Ctrl+S</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+S</syntaxhighlight>
|-
| Print || <syntaxhighlight lang="text" inline>Ctrl+P</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+P</syntaxhighlight>
|-
| Zoom in / out / reset || <syntaxhighlight lang="text" inline>Ctrl++</syntaxhighlight> / <syntaxhighlight lang="text" inline>Ctrl+-</syntaxhighlight> / <syntaxhighlight lang="text" inline>Ctrl+0</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd++</syntaxhighlight> / <syntaxhighlight lang="text" inline>Cmd+-</syntaxhighlight> / <syntaxhighlight lang="text" inline>Cmd+0</syntaxhighlight>
|}

=== Developer tools ===

{| class="wikitable"
! Action !! Windows / Linux !! macOS
|-
| Toggle developer tools || <syntaxhighlight lang="text" inline>F12</syntaxhighlight> or <syntaxhighlight lang="text" inline>Ctrl+Shift+I</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Option+I</syntaxhighlight>
|-
| Web console || <syntaxhighlight lang="text" inline>Ctrl+Shift+J</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Option+K</syntaxhighlight>
|-
| Inspect element || <syntaxhighlight lang="text" inline>Ctrl+Shift+C</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Option+C</syntaxhighlight>
|-
| Page source || <syntaxhighlight lang="text" inline>Ctrl+U</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+U</syntaxhighlight>
|-
| Screenshot the page || <syntaxhighlight lang="text" inline>Ctrl+Shift+S</syntaxhighlight> || <syntaxhighlight lang="text" inline>Cmd+Shift+S</syntaxhighlight>
|}

== Tabs, beyond shortcuts ==

* Middle-click a '''link''' — opens it in a new tab (in the background).
* Middle-click a '''tab''' — closes it.
* Right-click a tab → '''Pin Tab''' — collapse it to a small icon; pinned tabs stay after restart.
* Right-click a tab → '''Mute Tab''' — silence that tab's audio.
* Drag a tab to reorder it; drag it out of the window to open a separate window.

== about: pages ==

Type these in the address bar like a URL:

{| class="wikitable"
! Page !! What it is
|-
| <syntaxhighlight lang="text" inline>about:config</syntaxhighlight> || advanced preference editor (see below)
|-
| <syntaxhighlight lang="text" inline>about:addons</syntaxhighlight> || extensions and themes
|-
| <syntaxhighlight lang="text" inline>about:preferences</syntaxhighlight> || settings; jump to a pane with a fragment: <syntaxhighlight lang="text" inline>#privacy</syntaxhighlight>, <syntaxhighlight lang="text" inline>#search</syntaxhighlight>, <syntaxhighlight lang="text" inline>#sync</syntaxhighlight>
|-
| <syntaxhighlight lang="text" inline>about:logins</syntaxhighlight> || saved passwords
|-
| <syntaxhighlight lang="text" inline>about:downloads</syntaxhighlight> || download history
|-
| <syntaxhighlight lang="text" inline>about:processes</syntaxhighlight> || task manager — CPU and memory per tab and extension (<syntaxhighlight lang="text" inline>about:performance</syntaxhighlight> on older versions)
|-
| <syntaxhighlight lang="text" inline>about:support</syntaxhighlight> || troubleshooting info; includes the '''Refresh Firefox''' reset button
|-
| <syntaxhighlight lang="text" inline>about:profiles</syntaxhighlight> || manage profiles (create, launch, rename)
|-
| <syntaxhighlight lang="text" inline>about:debugging</syntaxhighlight> || debug add-ons, service workers, or Firefox itself
|-
| <syntaxhighlight lang="text" inline>about:memory</syntaxhighlight> || memory reports
|-
| <syntaxhighlight lang="text" inline>about:networking</syntaxhighlight> || network connections and diagnostics
|-
| <syntaxhighlight lang="text" inline>about:sessionrestore</syntaxhighlight> || pick which tabs to restore after a crash
|}

== about:config quick wins ==

<syntaxhighlight lang="text" inline>about:config</syntaxhighlight> edits preferences by hand — search for a name, then toggle or set a value.

{| class="wikitable"
! Preference !! What it does
|-
| <syntaxhighlight lang="text" inline>browser.privatebrowsing.autostart</syntaxhighlight> || <syntaxhighlight lang="text" inline>true</syntaxhighlight> = always start in private mode
|-
| <syntaxhighlight lang="text" inline>dom.security.https_only_mode</syntaxhighlight> || <syntaxhighlight lang="text" inline>true</syntaxhighlight> = upgrade every connection to HTTPS
|-
| <syntaxhighlight lang="text" inline>browser.urlbar.suggest.searches</syntaxhighlight> || <syntaxhighlight lang="text" inline>false</syntaxhighlight> = stop search-engine suggestions in the address bar
|-
| <syntaxhighlight lang="text" inline>browser.tabs.warnOnClose</syntaxhighlight> || <syntaxhighlight lang="text" inline>false</syntaxhighlight> = close a multi-tab window without asking
|-
| <syntaxhighlight lang="text" inline>browser.shell.checkDefaultBrowser</syntaxhighlight> || <syntaxhighlight lang="text" inline>false</syntaxhighlight> = stop the "make Firefox default" prompt
|-
| <syntaxhighlight lang="text" inline>general.useragent.override</syntaxhighlight> || set a custom user-agent string (e.g. to masquerade as another browser)
|}

<blockquote>
'''Gotcha:''' changes apply immediately and are not validated — a wrong value can break Firefox. Reset any preference with the ↺ button, and if things go wrong, use '''Refresh Firefox''' on <syntaxhighlight lang="text" inline>about:support</syntaxhighlight>.
</blockquote>

== Command line ==

Flags work on all platforms; on Windows the executable is <syntaxhighlight lang="text" inline>firefox.exe</syntaxhighlight>, on macOS run <syntaxhighlight lang="text" inline>open -a Firefox --args …</syntaxhighlight>.

{| class="wikitable"
! Command !! What it does
|-
| <syntaxhighlight lang="text" inline>firefox -new-window URL</syntaxhighlight> || open URL in a new window
|-
| <syntaxhighlight lang="text" inline>firefox -new-tab URL</syntaxhighlight> || open URL in a new tab
|-
| <syntaxhighlight lang="text" inline>firefox -private-window [URL]</syntaxhighlight> || open a private window (URL optional)
|-
| <syntaxhighlight lang="text" inline>firefox -P "profile"</syntaxhighlight> || start with a specific profile
|-
| <syntaxhighlight lang="text" inline>firefox -CreateProfile name</syntaxhighlight> || create a new profile
|-
| <syntaxhighlight lang="text" inline>firefox -ProfileManager</syntaxhighlight> || open the profile picker
|-
| <syntaxhighlight lang="text" inline>firefox -safe-mode</syntaxhighlight> || start with add-ons and hardware acceleration off (troubleshooting)
|-
| <syntaxhighlight lang="text" inline>firefox --headless --screenshot out.png URL</syntaxhighlight> || render a page to an image without opening a window
|}

== For more ==

* [https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly Keyboard shortcuts — Mozilla Support] — the complete list
* [https://support.mozilla.org/en-US/kb/search-firefox-address-bar Search with the Firefox address bar — Mozilla Support]
* [https://support.mozilla.org/en-US/kb/about-config-editor-firefox about:config — Mozilla Support]
* [https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options Command line options — MDN]
* [https://support.mozilla.org/en-US/kb/task-manager-tabs-or-extensions-are-slowing-firefox Firefox Task Manager — Mozilla Support]

Cheatsheets:Firefox - Revision history

Rongzhou: /* Tabs, beyond shortcuts */

Rongzhou at 09:43, 25 August 2026

RonzzWikiCowriterAI: New Firefox cheatsheet: address bar, keyboard shortcuts, about: pages, about:config, command line. AI-assisted (RonzzWikiCowriter) (via create-page on MediaWiki MCP Server)