iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
In Firefox for desktop, open Tools > Web Developer > Web Developer Tools, or press Ctrl+Shift+I on Windows or Linux and Command+Option+I on macOS. The toolbox opens on the page in the active tab, with the tool you last used selected.
Open Developer Tools from Firefox’s menu
- Switch to the Firefox tab containing the page you want to inspect.
- Open Tools > Web Developer > Web Developer Tools.
- Use the toolbox that appears; it is attached to the document in the active tab.
This menu route is easy to find and is a useful fallback when a keyboard shortcut is intercepted. Mozilla describes Firefox Developer Tools as a set of web developer tools built into Firefox. Mozilla Firefox DevTools User Docs.
Use a keyboard shortcut to open the toolbox
| Platform | Open Developer Tools |
|---|---|
| Windows or Linux | Ctrl+Shift+I |
| macOS | Command+Option+I |
On macOS, the Option key may be labeled Alt. These shortcuts open the general toolbox for the active tab. Mozilla Support’s keyboard-shortcut article was last updated September 4, 2026. Mozilla Support: Keyboard shortcuts.
Open a specific Firefox tool directly
If you already know which panel you need, use its shortcut instead of opening the general toolbox first:
#1 Best Overall
- Media-Friendly: The K400 Plus wireless touch TV keyboard gives you integrated, comfortable control of your PC-to-TV entertainment, eliminating the clutter of a separate keyboard and mouse
- Plug-and-Play: Simply plug the Unifying receiver into a USB port and the wireless touchpad keyboard is ready to go; adjust controls using the Logitech Options Software to save preferred settings
- Power-Packed: Built with laid-back control in mind, this wireless TV keyboard has a reliable and long battery life of up to 18 months (2), including an on/off button to help it go even longer
- Wireless Freedom: Designed for seamless comfort and control, this HTPC keyboard boasts a range of up to 33 ft (1) wireless connectivity, with quiet keys and a large touchpad for easy navigation
- Broad Compatibility: Designed for use with Windows 7, Windows 8, Windows 10 and later, Android 7 or later, and Chrome OS
| Tool or mode | Windows or Linux | macOS |
|---|---|---|
| Web Console | Ctrl+Shift+K | Command+Option+K |
| Page-element picker | Ctrl+Shift+C | Command+Option+C |
| Network Monitor | Ctrl+Shift+E | Command+Option+E |
| Responsive Design Mode | Ctrl+Shift+M | Command+Option+M |
Firefox also includes the Inspector, JavaScript Debugger, Performance tools, and Accessibility Inspector. The exact result of an individual shortcut depends on the tool: for example, the documented F12 action can bring a detached toolbox forward or close it when it is already in the foreground. Mozilla Firefox: All keyboard shortcuts.
Why F12 or another shortcut may not work
Mozilla Support lists F12 as a way to toggle Developer Tools. Mozilla’s developer shortcut documentation describes its behavior in relation to a detached toolbox, so F12 may not behave like the Ctrl+Shift+I or Command+Option+I global launch shortcut in every situation. Desktop environments or window managers can also claim keyboard combinations before Firefox receives them.
Rank #2
- DUAL WIRELESS CONNECTION - BLUETOOTH + 2.4GHZ RF: Easily switch between Bluetooth and 2.4GHz USB receiver modes for flexible connectivity. Enjoy stable, responsive control for Smart TVs, Android TV boxes, PCs, laptops, tablets, and more.
- BUILT-IN TOUCHPAD & FULL QWERTY KEYBOARD: Navigate, scroll, type, and control your device from the couch with the integrated high-sensitivity touchpad and compact full keyboard layout — no separate mouse needed.
- 7-COLOR BACKLITS KEYS FOR DAY & NIGHT USE: Adjustable multi-color backlit keyboard makes typing easy in dark rooms, home theaters, bedrooms, or nighttime media setups while adding a modern gaming-style look.
- WIDE DEVICE COMPATIBILITY: Compatible with most devices supporting Bluetooth or USB receiver connection, including Smart TVs, Android TV boxes, streaming devices, HTPCs, Windows PCs, laptops, Raspberry Pi, tablets, and projectors.
- GREAT FOR STREAMING, GAMING & HOME THEATER: Perfect for browsing, media streaming, presentations, casual gaming, and controlling your entertainment system from a distance with smooth wireless performance up to 33ft (10m).
- Try the menu route: Tools > Web Developer > Web Developer Tools.
- Check that Firefox is focused and that you are using the shortcut for your operating system.
- If you customized shortcuts, restore the relevant default or choose a different combination.
Mozilla Support documents shortcut customization as an experimental feature beginning with Firefox 147. On desktop, enter about:keyboard in the address bar, find the shortcut, select its Change control, and press the replacement combination. Use Reset for one shortcut or Reset all shortcuts to defaults to undo customizations. Mozilla notes that keyboard-layout support is limited. Mozilla Support: Customize keyboard shortcuts in Firefox.
Does this work in Firefox for Android or iOS?
The menu paths and keyboard combinations above are for Firefox desktop. The cited desktop shortcut documentation does not establish equivalent steps for Firefox on Android or iOS, and Mozilla’s shortcut-customization article specifically says that feature is not supported on those mobile platforms.
Quick Recap
Best Value
- Dual Mode 2.4G+BT Mini Keyboard pairs with 2 devices. BT for Smart TV, Tablet, Projector, Android Box, Fire Stick. 2.4G via USB receiver for non-BT devices. Seamless switching.
- 3-in-1 Mini Keyboard & Touchpad. 33ft range for Smart TV, PC, HTPC, Pi, Steam Deck. Ideal for media & slides. Verify device compatibility before buying
- 【Backlit Keyboard】 The wireless mini keyboard with White LED backlit is perfect for using in a dark environment
- 【Long-Lasting & USB-C Rechargeable】Mini usb Keyboard, Stay powered for over 30 days on a single charge with the built-in 500mAh battery. Features modern USB-C charging for quick and convenient power-ups
- 【Ultra-portable & Compact】Portable bluetooth keyboard, Roughly the size of an iPhone, it's designed for true on-the-go convenience. Perfectly easy to carry around while traveling or commuting
Rank #4
- ♚【Easy to use】 This wireless keyboard and mouse combo just need to plug the USB receiver into your device and use it. Plug the USB cable to the charging port easily charging (on the top left of the keyboard).
- ♚【10M Working Range & Portable】This mini keyboard can work up to 10 meters (33 Feet). And the small and handheld design take up very minimal space in your bag. Just let you say goodbye to chunky keyboard to enjoy controlling with the keyboard on the couch. (The range might be affected by the wireless environment)
- ♚【7-Colors Backlit & Rechargeable Battery 】This backlit keyboard has 7 colors of backlit mode which is easy to use even in dark environments. With auto sleep and wake-up function, and comes with a rechargeable Li-ion battery, it can work for a long time.
- ♚【Multi-function keyboard】This mini wireless keyboard built-in multi-finger function Touchpad and 8 hotkeys, which can easy to type and copy/paste, making it faster and more convenient for your browse the page.
- ♚【Widely Compatibility】This mini keyboard mouse combo perfect for PC, Andriod TV Box, Smart TV, x-box, Raspberry PI, TV Box, PS3, HTPC/IPTV, desktop, laptop, etc. If there is not a USB port, you need to prepare a OTG cable.
Rank #3
- 【Easy to Connect & Use】The mini wireles keyboard remote is connected via USB receiver(included) and the work distance up to 10 meters. Just plug and play. very easy to connect and use. Powerful function (keyboard + touchpad + mouse) very perfect for browsing the web, playing games or watching TV.
- 【Widely Compatibility】The mini keyboard with touchpad can be used for Android TV box, smart TV, PC, Pad, Raspberry PI, PS3, x-box, desktop, laptop, smart phone,HTPC/IPTV, etc. If there is not a USB port, you need to prepare a OTG cable.
- 【Mutil-Colors Backlit and Rechargeable Battery】The USB mini keyboard has mutil-colors of backlit mode which can clear operate the keys when work at night, don't need to turn on the light which disturbing your families. With auto sleep and wake-up function, and comes with a rechargeable Li-ion battery, it can work for a long time.
- 【Portable Keyboard】 This small keyboard is designed Small and handheld design, has a innovative shape and petite size, takes up very minimal space in you bag and just makes you say goodbye to chunky keyboard to horizon a new experience of office entertainment anywhere, anytime.
- 【Sensitive Touchpad & Hotkeys】Wireless mini keyboard with multi-finger touchpad and combo with 8 hotkeys can easy and accurate manipulation. Easy to type and copy / paste, making it faster and more convenient for you browse the page.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
