Mozilla Firefox Keyboard Shortcuts
Firefox's shortcuts overlap heavily with Chrome's for the basics (Ctrl+T for new tab, Ctrl+W to close) since both browsers converged on similar conventions over years of competing for the same users, but several bindings diverge in ways worth knowing specifically — bookmark management, Firefox's own distinct approach to developer tools and reader mode, and container tabs, none of which Chrome offers natively in the same form. Firefox's container tabs feature, which lets you isolate groups of tabs with separate cookie storage (useful for staying logged into multiple accounts on the same site simultaneously), has its own management approach that Chrome doesn't have a direct native equivalent for without a third-party extension. Because Firefox has historically emphasized user customization more than Chrome, its keyboard shortcut set can also be remapped through about:config or extensions in ways that go beyond what Chrome's more locked-down shortcut system typically permits, which matters for the privacy- and customization-conscious users who tend to specifically choose Firefox over a Chromium-based alternative in the first place. Firefox and Zen Browser (covered separately on this site) share this same underlying Gecko engine and inherit an overlapping core shortcut set, but Zen layers genuinely distinct Workspace and split-view features on top that stock Firefox doesn't have; this page covers Firefox on its own terms rather than the Zen-specific additions. Tab and window management, developer tools, and privacy/customization features form the three natural groupings covered here, reflecting the three areas where Firefox users most commonly reach for a keyboard shortcut rather than the mouse.
Tabs Browsing
| Action | Windows | Mac | Description |
|---|---|---|---|
| Open new tab | Ctrl+T | Cmd+T | Opens a new tab showing Firefox's own start page, which surfaces pinned shortcuts, recent browsing, and (where enabled) Pocket-recommended articles rather than a search-engine-branded page, with the address bar already focused. |
| Reopen last closed tab | Ctrl+Shift+T | Cmd+Shift+T | Restores the most recently closed tab, and repeated presses continue walking back through Firefox's closed-tab history in order, drawing from the same session store that also survives an accidental full browser restart via History > Recently Closed Tabs. |
| Bookmark current page | Ctrl+D | Cmd+D | Brings up Firefox's bookmark editor panel for whatever page is open, where beyond just picking a folder you can also attach searchable tags — a layer of organization noticeably deeper than the plain folder structure most other browsers stick to. |
| Toggle Reader View | F9 (or click the reader icon in address bar) | Cmd+Alt+R | Strips a compatible article page down to a clean, distraction-free text-only layout, a built-in feature Chrome doesn't offer natively without an extension. |
| Focus the address bar | Ctrl+L or Alt+D | Cmd+L | Jumps the cursor straight into the address bar with its existing text pre-selected, so you can immediately overwrite it with a new destination or query. |
| Toggle full-screen mode | F11 | Cmd+Ctrl+F | Expands the browser window to fill the entire screen, hiding tabs and toolbars, useful for distraction-minimal reading or presenting web content. |
| Cycle through open tabs | Ctrl+Tab / Ctrl+Shift+Tab | Cmd+Shift+] / Cmd+Shift+[ | Moves forward or backward through your open tabs in the order they appear on the tab bar, a straightforward alternative to clicking a specific tab directly when you just need the next or previous one. |
Developer Tools
| Action | Windows | Mac | Description |
|---|---|---|---|
| Open Developer Tools | F12 or Ctrl+Shift+I | Cmd+Option+I | Opens Firefox's own Developer Tools panel, which shares conceptual similarity with Chrome DevTools but has distinct strengths, particularly its CSS Grid and Flexbox inspection overlays. |
| Toggle Responsive Design Mode | Ctrl+Shift+M | Cmd+Option+M | Firefox's equivalent of Chrome's device emulation toolbar, simulating various screen sizes for responsive testing — note the Mac shortcut differs from Chrome's identical-looking Cmd+Shift+M, since Firefox uses Option where Chrome uses Shift in the modifier combination. |
| View page source | Ctrl+U | Cmd+U | Opens the raw HTML source of the current page in a new tab, a quick way to check static markup without opening the full DevTools panel. |
| Open the Web Console directly | Ctrl+Shift+K | Cmd+Option+K | Jumps straight to the Console panel within DevTools rather than opening to whichever panel was last active, useful when you specifically need to check for logged errors or run a quick script without navigating tabs inside DevTools first. |
Privacy Customization
| Action | Windows | Mac | Description |
|---|---|---|---|
| Open new Private Window | Ctrl+Shift+P | Cmd+Shift+P | Spins up a fresh Private Browsing window that discards its history, cookies, and any typed form data the moment it closes; Firefox binds this to a different letter than Chrome's Incognito shortcut, which trips up plenty of people who use both browsers regularly. |
| Open new Container tab | Via Container icon menu (no default global key) | Via Container icon menu | Opens a new tab within an isolated cookie container, keeping a separate login session active in parallel with your normal browsing — a feature Chrome doesn't offer natively without a third-party extension. |
| Open the about:config advanced settings page | Type about:config in address bar, Enter | — | Reaches Firefox's low-level configuration editor, where individual internal preferences (including some keyboard-shortcut-related and privacy-related flags not exposed in the regular Settings UI) can be toggled directly — not a keystroke shortcut itself, but the typed gateway to Firefox's deepest layer of user customization. |
| Clear recent browsing history | Ctrl+Shift+Delete | Cmd+Shift+Delete | Opens the Clear Recent History dialog, letting you choose a specific time range (the last hour, today, or everything) and exactly which data types (cookies, cache, history, form data) to remove, rather than clearing everything indiscriminately. |
| View Enhanced Tracking Protection status | Click shield icon in address bar (no default global key) | — | Opens the panel showing what Firefox's built-in tracking protection has blocked on the current page and lets you adjust its strictness for that specific site, part of Firefox's privacy-by-default positioning relative to Chromium-based browsers. |
Frequently Asked Questions
Why does Ctrl+Shift+P open Private Browsing in Firefox but Incognito uses a different shortcut in Chrome?
The two browsers simply standardized on different key combinations during their independent development — Firefox uses Ctrl+Shift+P (P for Private) while Chrome uses Ctrl+Shift+N (N for New incognito window). This is one of the most common points of confusion for people who regularly switch between both browsers, since muscle memory from one actively does something different in the other.
Is Firefox's Reader View the same as Chrome's reading mode?
Conceptually similar but implemented independently — Firefox's Reader View (F9) is a long-standing native feature with its own distinct styling options (font, theme, text size) accessible directly within the reader view itself. Chrome's reading-focused features have historically been less consistently available natively and have varied more across versions and platforms.
What are container tabs and why would I use them over regular private browsing?
Container tabs isolate cookies and site data per container, letting you stay simultaneously logged into, say, two different accounts on the same website in separate tabs without them interfering with each other — unlike Private Browsing, which doesn't persist any session at all after closing, containers keep separate persistent logged-in sessions that you can return to.
Can I remap Firefox's default keyboard shortcuts?
Firefox doesn't expose a full built-in shortcut-remapping settings panel the way some applications do, but power users can customize certain bindings through about:config flags or via extensions built specifically for shortcut customization, offering more flexibility than Chrome's generally more fixed default shortcut set.
How is Firefox different from Zen Browser if Zen is built on the same engine?
Zen Browser inherits Firefox's core shortcut set essentially unchanged (covered on this site's own Zen Browser page) but adds Workspaces and a native split-view feature that stock Firefox doesn't have. Firefox itself doesn't offer Workspaces or split-view natively; anyone wanting those specific features on top of Firefox's engine is choosing between running Zen directly or approximating similar organization through Firefox's own container tabs and window management instead.
Does Firefox support syncing bookmarks and shortcuts across multiple devices?
Yes, Firefox Sync (tied to a free Firefox account) keeps bookmarks, history, saved passwords, and open tabs consistent across every device signed into the same account, though keyboard shortcut customizations made via about:config or extensions are generally per-device settings rather than something that syncs automatically.
Why does my Responsive Design Mode look different from Chrome's device toolbar?
Both tools serve the same general purpose — simulating different viewport sizes — but Firefox's implementation includes some distinct features like simulated touch events and a different set of preset device sizes, reflecting that the two browser engines built these tools independently rather than from a shared codebase.
Is about:config safe to use, and what happens if I change the wrong setting?
Firefox shows a warning page requiring an explicit 'accept the risk' click before about:config opens, precisely because it exposes low-level internal preferences that aren't validated the way the regular Settings UI's options are. Most individual preference changes are safely reversible by resetting that specific preference back to its default (right-click the entry and choose Reset), but it's worth changing one setting at a time and confirming Firefox still behaves as expected before making further changes.