Safari 15 Extension for Mac Helps You Tell Which Tab Is Active

Safari 15 has faced a barrage of complaints about its controversial new design, and while Apple has listened to user feedback and reversed some changes or made them optional, many users still struggle to discern an active tab from a background tab on the Mac browser because of the inverted shading.

safari 15 tabs
Unfortunately for users who do not like the new design, Apple has not made any changes to the shading of tabs in either the Safari 15.1 beta or the latest version of the experimental Safari Technology Preview browser.

Fortunately however, developer Zhenyi Tan was inspired by John Gruber's Daring Fireball article about the issue and has since come up with a simple Safari extension called ActiveTab that provides a solution.

ActiveTab simply makes it easier to spot the active tab in Safari on Mac by drawing a line underneath it. There are eight colors to choose from, and the line below the tab can be customized to be between 1 and 7 pixels wide.

active tabs
As Zhenyi notes, the extension works best with the "Separate" tab layout selected and "Show color in tab bar" disabled in the Tab section of Safari's Preferences. Zhenyi also cautions that ActiveTab will not work reliably if you have so many tabs in a window that the tab bar becomes scrollable.

ActiveTab is available for $1.99 on the Mac App Store, with no in-app purchases, no ads, and no tracking.

(H/T MacStories.)

Tag: Safari

Popular Stories

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...

Top Rated Comments

karranz Avatar
57 months ago
OK so in 2021 I need an independent developer (thanks Zhenyi!) to fix Safari.
Score: 27 Votes (Like | Disagree)
Mac Fly (film) Avatar
57 months ago
Hahaha. Great design, Apple ?

Safari 14 tabs were a better UX design in every way: more attractive, more intuitive, more minimal, a more efficient use of available screen space, more drag-able and tab-like.
Score: 26 Votes (Like | Disagree)
arvinsim Avatar
57 months ago
A company that is renowned for its user experience has to rely on a third party to fix their browser product o_O
Score: 14 Votes (Like | Disagree)
SilverWalker Avatar
57 months ago
Lighter tabs are lighter because they are in the foregrounds - there is more light on them; darker tabs are darker because they are in the background - there is less light on them. It is 101. I can't understand why a designer at Apple would go the opposite way to this. There have been other controls in Mac OS / iOS that have done the same thing, and it is always confusing what the currently selection option is. Design is supposed to get out of the way, it should be 'invisible' so that we can use something without having to think about it.
Score: 13 Votes (Like | Disagree)
the3ye Avatar
57 months ago

Don't most people run dark mode? Well, I do and my safari looks fine. The active tab is lighter than the inactive ones, just as you'd expect.
It should be the same on light mode but it's not. That's the problem. When I switch to dark mode I'm even more confused. Suddenly active tab is lighter than inactive @@
Score: 10 Votes (Like | Disagree)
baryon Avatar
57 months ago
I use auto dark/light mode: light during the day, dark at night. In dark mode, the lighter tab is active. In light mode, the darker tab is active. When the mouse hovers over a tab, it becomes the same color as the active tab. It's terrible design! Even in DOS things were more visible.
Score: 10 Votes (Like | Disagree)