OSX 10.7.4, MacBook Air

I've noticed that when I select text and attempt to replace it with additional text, some text areas will maintain the selection and cause me to errantly delete data from my text area. I can easily reproduce it in Chrome 19 or Sparrow 1.5, but I cannot reproduce this behavior in TextEdit or Textmate, however.

To reproduce:

  1. Type some text in a text area in Chrome or Sparrow: "This is a test"
  2. Select "This is"
  3. "This is" will be highlighted
  4. Start typing. "This is" will immediately disappear, but the selection will remain and instead highlight " a test". I hit another keystroke, and it deletes the "a test", deselects, and goes back to normal.
  5. Sometimes, however, it will remain selected for an indeterminate amount of time and I'll have inadvertently deleted most of a paragraph simply by typing a single word!

It seemingly does not work if I highlight a single word - it has to do with multi-word select and typing immediately after selecting.

This is kind of insane, bizarro behavior I've never seen from OS X. Any thoughts? It's driving me crazy. I've reproduced it with the built-in trackpad and the Magic Trackpad.

For reference, it's the same issue as reported here, yet unresolved (https://discussions.apple.com/thread/3756111?start=0&tstart=0)

  • In addition to Chrome, I have this problem constantly in Outlook running on Lion. Incredibly annoying! And it does happen with single words (or even partial words) if you do it fast enough.
    – rymo
    Commented Dec 8, 2012 at 16:53

1 Answer 1


I think this behaviour can be attributed to Mac OS X's momentum scrolling. While you select the text the text is still being selected (due to the initial momentum of the mouse you used to select it). I can't be sure but this same thing keeps happening to me

  • 1
    It happens to me when I'm not using a mouse - a trackpad - but the pointer has clearly stopped moving.. But indeed it seems triggered to timing after the select. If I start typing very shortly after selecting it will re-select, but waiting a long time seems to work as expected. Commented May 21, 2012 at 19:44

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .