Skip to main content
Technologies
Technologies Overview
XUL
HTML
CSS
JavaScript
XPCOM
Graphics
HTTP
APIs / DOM
MathML
References & Guides
Learn web development
Tutorials
References
Developer Guides
Accessibility
Game development
...more docs
Additional Resources
Archive
UXP Homepage 🌐
Pale Moon on GitHub 🌐
UXP on GitHub 🌐
Pale Moon Forum 🌐
Support Pale Moon 🌐
Support the Backup
Additional Details
search
onselect
See
Archive of obsolete content
See
Archived Mozilla and build documentation
See
XUL
See
Attribute (XUL)
onselect
See
tabs.onselect
tree.onselect
