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A software engineer has been keeping nearly 7,500 Firefox tabs open on her Mac computer for over two years—and doesn't plan on closing them anytime soon. Firefox power user Hazel, who prefers not to give her last name, posted a screenshot showing 7,470 tabs open earlier this week after finding the browser initially unable to restore all the tabs. Hazel was able to bring the tabs back to life via a Firefox profile cache, however, and tells PCMag that reloading the full session took "no more than a minute." "I feel like a part of me is restored," Hazel wrote on X once the Firefox tabs had returned. The Firefox fan tells PCMag in a message that she keeps so many tabs open for nostalgia reasons. "I like to scroll back and see clusters of tabs from months ago—it's like a trip down memory lane on whatever I was doing/learning about/thinking about," she says. Surprisingly, all those tabs haven't impacted the computer's performance. "Firefox is quite memory efficient and isn't actually loading the websites unless I click on the tab—so it's not very resource intensive," Hazel says. A Mozilla rep confirms to PCMag that having tons of Firefox tabs open consumes "practically no memory whatsoever." "We've been working hard on the performance of Firefox over the last several years, and we're glad to see the results of those efforts paying off," Mozilla adds. By comparison, rival browser Google Chrome has historically used up more than its fair share of computer memory, though Google has taken some steps to combat that. A quick PCMag test shows that 10 Chrome tabs on a Windows 11 PC with 32GB of RAM and 2TB of NVMe SSD storage take up over 2,000MB, or 12.5% of PC memory, so there's still room for improvement (Hazel's massive Firefox session file is just 70MB). Mozilla also shared that new features are on the horizon to help tab-saving enthusiasts. "We're working hard to provide people with even better tools for managing dozens to thousands of tabs. While we think it's amazing that anyone has 7,000 active tabs, it also shows the degree to which tab management is a common problem," the Mozilla rep said. While Firefox users can already create different user profiles, Mozilla says it plans to roll out a new profiles feature and a new tab organization feature later this year; Google is also testing the latter on Chrome. In the meantime, there are some third-party Firefox add-ons that can help manage tons of tabs. Sign up for What's New Now to get our top stories delivered to your inbox every morning. This newsletter may contain advertising, deals, or affiliate links. Subscribing to a newsletter indicates your consent to our Terms of Use and Privacy Policy. You may unsubscribe from the newsletters at any time.
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