I have a Magento CE 1.7 project and when I go to "Catalog > Attributes > Manage Attributes" then click in any existing attribute.
Now, Tab "Manage Label/Option" on the section "Manage Options (values of your attribute)" I click on "Add Option", fill the field with any text and hit the button "Save and Continue Edit".
After that nothing else works anymore. The browser freezes and afterwards crashes. Has anyone else come across this issue and got it sorted?