(Currently investigating compatibility issues with Big Sur, if you experience any issues please contact me via the contact form/link)

Reduce your memory and CPU usage by up to 60% and indirectly your battery consumption by automatically suspending the tabs you aren't using.

How many tabs do you have open that you have not used in hours or even days? That could be making your system run slower. With the Tab Suspender you can set how many minutes to wait before suspending an inactive tabs among many other options:

- Whitelist urls or domains that you do not want to suspend (You can still manually suspend them by using the menu)
- Show a screen shot of the page just before it was suspended
- Detects tabs playing audio and will not suspend them if you don't want it (experimental)
- Detects tabs that contain active forms and will not suspend them if you don't want it
- Optionally, do not suspend tabs if on battery power or no network connections
- Dark mode compatible!

What’s New

Version 2.1.1

- Big Sur specific improvements

Ratings and Reviews

4.4 out of 5
30 Ratings

30 Ratings

Bob 868 ,

Very good - with one MAJOR issue

It does what it is designed to do, and save for the occassional hiccup (when it fails to restore tabs, which can be solved by restarting Safari).

The one thing that's a majos annoyance is that when you open Safari, Tab Suspender places a popup in the middle of your screen - telling you that it's restoring your tabs - and this popup can not be dismissed or even minimized. It sits on top of ALL apps, not only Safari, so even if you switch to another app, it still forces itself on top of all other apps. For what reason I don't know. That's a completely useless popup, and it completely interrupts my work. Since it can take MINUTES to restore tabs if you have a lot of them open, Tab Suspender basically takes over your computer for absolutely no reason. That's why it only gets 4 stars. I hope the developer reads reviews and gets rid of this stupid and disruptive popup in the future (or makes it possible to dismiss it with a click), then it would be a 5 star app.

Developer Response ,


Thank you for your feedback! I agree the popup is annoying, unfortunately there is a reason for its existence. Safari 13 has an issue that prevents extension tabs from the previous session to be loaded when opening Safari. The extension tries to workaround that by restoring those tabs using a not so efficient, but necessary process. Because this process might take some time, that popup is shown. Ideally the popup would only show when Safari is in the foreground, but current Safari Extension's limitations makes that impossible. The minimize button in the toolbar should show. If it does not, I would really appreciate if you could contact me (via the contact button in the extension) and let me know your MacOS version.

On the other hand, you will not see the popup anymore if you update to Safari 14. If you do decide to update Safari, please Unsuspend all your tabs before. This is an essential step since there seems to be a bug in the Safari 14 update that breaks extension created tabs - including the Tab Suspender ones.

Once again, unsuspend all tabs before the update.

Thank you for review and, please, feel free to contact me via the extension menu for further issues and questions

amc135 ,

Great extension!

Does what is says it does! Saves TONS of memory for me. 4 stars becuase I didn't have the issue with the repeated "restoring tabs" mesasge until updating to the latest version that claimed to fix this...

UPDATE: restoring tabs issue is fixed, but still 4 stars because the updates are getting to be very irritating. There has been a new update every day for the past 4 days and I keep having to quit safari to update, then restart and restore broken tabs, which gets rid of the screenshot on each tab unless I go through, un-suspend them all, then re-suspend them all. Just a little annoying, please try to wait to update until all issues have been solved. :(

Developer Response ,


I'm glad you find it useful and apologies for that bug!

The issue with the "Restoring tabs" message showing several times was only in the version 1.2.0. You might have had an earlier version that did not have that issue so that is why you might not have experienced it before. Either way version 1.2.2 was released yesterday and will most likely fix this issue. Make sure to refresh the updates section in the App Store. One important note, given how the Tab Suspender is integrated in Safari you will have to quit Safari while the app updates.

Please reach me via the contact form in the Tab suspender preferences as I would like to try to get more information on that bug in order to be able to reproduce it in my machine and then fix it as that is a very annoying glitch...

Thank you

skinny_much ,

Giving 5 stars to balance out the greater than 1K tabs 2 star review

Of course if you have over 1K tabs, any thing that is trying to do anything with your tabs will mess up most personal computers. If you try doing something like this with Chrome with just 200 or so tabs on an average Mac, it'll mess up too, as you'd expect.

The developer can't put an easy disclaimer either as if you're computer is super powerful, it would be able to handle going through more tabs.

App Privacy

The developer, Bruno Magalhaes, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.