Here’s Why You’re Having Trouble Resizing Windows in MacOS Tahoe.
Apple’s latest updates have sparked mixed reactions. Some users love the new Liquid Glass design on iPhone, iPad, and Mac, while others are vehemently opposed —which is likely why Apple introduced a special setting to adjust the effect’s intensity . I like it, but I understand that some users might find it excessive, especially if it makes some interface elements difficult to see.
But Liquid Glass isn’t the only issue Apple users have complained about, particularly with macOS Tahoe . Mac users have reported various performance and stability issues in macOS 26.0 and macOS 26.1, and also criticized design decisions like overly rounded corners . I personally postponed updating my Mac M3 Pro to macOS 26.2, which seemed to fix many of these issues, but my iMac M1 is still running macOS Sequoia. All of this suggests that macOS 26 hasn’t gotten off to a smooth start compared to some previous Mac updates from Apple. If you’ve noticed, for example, that window management on your Mac has become less convenient than before, you’re not alone. In fact, there appears to be a clear explanation for these issues.
Windows issue on macOS Tahoe
As with other versions of macOS, you can resize and adjust app windows on your Mac by clicking and dragging their bottom corners. However, after Apple’s latest update, grabbing a window corner has become quite difficult. Instead, you might click the bottom corner of an app or website, which can lead to unintended actions. For example, clicking the upper-right corner of Chrome will drag the entire app window rather than resize it. Clicking and dragging the lower-left corner will select the entire contents of the app window, potentially moving you around the entire screen.
If you slowly move your cursor over a corner of a window, you’ll eventually find a spot where the cursor turns into a resize icon, and you’ll realize you can click and drag to resize. But why is this so much harder to do quickly than it was in macOS Sequoia and later?
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Software developer Norbert Heger appears to have found the answer. In a blog post on Sunday, Heger explained that the rounded corners Apple developed for the Tahoe negatively impact the window’s clickable area. With rectangular corners, most of the clickable area—62%, according to Heger—is in the very corner of the window. This gives users a relatively large clickable area inside the corner to capture the window, as well as some space outside the window to click. But the new rounded corners don’t seem to account for this. Instead, they rely on the same clickable area as before, but because the corner is now smaller, the actual clickable area of the window has significantly decreased. Heger says that about 75% of the clickable area is now outside the window itself, leaving users with only 25% to work with in the very corner of the window.
If you’re using macOS Tahoe, you can try this right now: move your cursor to the corner of the window and wait until it changes to the resize icon. If you’re inside the window itself, it won’t change until you move it outside of it. Continue moving and make sure you can move quite far outside the window before the cursor reverts to its original shape.
It seems Apple could fix this fairly easily if they’re aware of the issue. A patch might even be included in macOS 26.3. However, the company hasn’t publicly confirmed this issue, so it’s anyone’s guess. Until a potential solution is released, macOS Tahoe users will have to relearn how to resize windows. Those who haven’t updated yet can simply continue using the system as usual.