Preview Firefox Tabs without Clicking on Them

If you are one who often has a large amount of tabs open in Firefox, you may not like having to click on a tab just to see what’s on it. Wouldn’t it be much easier and save you time if you could simply preview your Firefox tabs just by hovering your mouse over there?

Tab Scope is an add-on that does this for you with ease. Just install it and you’ll get lightweight previews for your tabs.

1. Install the Tab Scope add-on for Firefox; you will need to restart your browser.

2. The add-on works right out of the box, so you’ll immediately be able to preview your Firefox tabs just by hovering your move over them. You can also customize the addon within its Preferences.

Tab Scope Firefox Add-on Options

3. Press “Shift + Ctrl + A” (or “Shift+ Cmd + A” for Mac) to open up the Addons Manager, and click on Preferences next to Tab Scope to open options.

You can change things such as the appearance and alignment of the preview popup, the wait time to show popup, the width and height of the popup, zoom ratio and more. Click close when you’re done to see your new changes.

Subscribe to our newsletter!

Our latest tutorials delivered straight to your inbox

Charnita Fance Avatar

Read next

Wi-Fi doesn’t actually slow down when a café gets crowded — the signal is fine, but every device has to wait its turn to speak on the same frequency, and the polite queuing is what you feel as lag
In 1988, a 23-year-old Cornell graduate student named Robert Morris released a self-replicating program to measure the size of the internet — within hours it had crashed roughly 6,000 of the 60,000 machines then online, and computer security became a field
In July 2026, Psy’s Gangnam Style passed six billion YouTube views, fourteen years after its horse-riding dance became the platform’s first billion-view video and long after engineers had replaced a counter designed to stop at 2,147,483,647
Suzanne Simard sealed paper birch and Douglas fir seedlings inside plastic bags, fed them carbon-14 and carbon-13 dioxide, and nine days later found carbon had crossed between species through fungal threads in the British Columbia soil beneath her boots
A species of jellyfish called Turritopsis dohrnii can revert its adult cells back to a juvenile polyp stage when injured or starving, effectively restarting its life cycle, and biologists have so far failed to identify any natural limit to how many times it can do this.
A Japanese man named Jiroemon Kimura, who lived to 116, was born in 1897 when Queen Victoria still ruled and died in 2013, meaning a single human life personally overlapped with the invention of the airplane, the atomic bomb, the internet, and Instagram
The Hollywood sign originally read HOLLYWOODLAND when it was built in 1923 as a real estate advertisement for a housing development, and it was only meant to stand for 18 months, but nobody ever got around to taking it down and the city eventually adopted it as a landmark
Almost all of the world’s internet traffic does not travel by satellite but through fibre-optic cables lying on the ocean floor, a hidden web of wires crossing the deepest parts of the sea to connect the continents.