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XUL at a glance
XUL
XUL emerged in the early Mozilla era and powered Firefox's interface and add-on ecosystem for years before Firefox Quantum and the WebExtensions shift made most mainstream XUL workflows legacy.
CUR at a glance
CUR
These formats reflect how desktop operating systems built their own graphics-resource conventions for cursors, icons, and device-independent drawing.
Format comparison
| Feature | XUL | CUR |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1999 | 1990 |
| Inventor | Mozilla (David Hyatt, others) | Microsoft / Windows ecosystem |
| Status | legacy | legacy |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
When to use each format
When to use XUL
- Your source file is already in XUL.
- Preserve source expectations before exporting to CUR.
- XUL is commonly used in document workflows.
When to use CUR
- Your target workflow expects CUR.
- Improve delivery compatibility with CUR.
- CUR is commonly used in image workflows.
FAQs
Why convert XUL to CUR?
Convert to CUR when preparing or preserving cursor assets for Windows applications, themes, or interface restoration.
It is useful when pointer hotspot behavior must survive alongside the bitmap itself.
What changes when converting XUL to CUR?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting XUL to CUR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.