Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am getting the message box shown in the screenshot below when watching videos on YouTube using Firefox 4.0.1. Also, Adobe Flash is crashing very often. It's not only YouTube, I can see this message on almost all streaming videos. I am running Ubuntu 11.04 on a ThinkPad x300.

message box

share|improve this question
I'm sorry, but lmao at the first comment on that video. – Thomas Boxley Jun 5 '11 at 18:20
up vote 3 down vote accepted

Applications that run in Adobe Flash Player may want to store some information on your computer, but the amount they can store is limited to 100 kilobytes unless you agree to allocate additional space. Local storage settings let you specify how much disk space, if any, applications from a particular website can use to store information on your computer.

You can read all about Flash's Local Storage here.

To configure it, browse to these webpages (both lead to tabs in the Flash Player's settings manager):

Note, that those settings are global and not bound to the browser. If you change anything with Firefox, the change will also affect Chromium, Opera, etc.

share|improve this answer
Is there any relationship between accepting/rejecting this message and crashing of adobe flash? Please let me know. – samarasa Jun 5 '11 at 18:52
As I generally don't allow pages to store any information I don't think your crashes are related to this. – htorque Jun 5 '11 at 19:14

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.