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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.
CAP at a glance
CAP
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | XUL | CAP |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1999 | 2005 |
| Inventor | Mozilla (David Hyatt, others) | Phase One |
| Status | legacy | proprietary |
| 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 CAP.
- XUL is commonly used in document workflows.
When to use CAP
- Your target workflow expects CAP.
- Improve delivery compatibility with CAP.
- CAP is commonly used in image workflows.
FAQs
Why convert XUL to CAP?
Convert to CAP when keeping compatibility with a legacy capture workflow or preserving source material from a proprietary imaging system.
It is mainly useful in archive recovery and controlled migration scenarios.
What changes when converting XUL to CAP?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting XUL to CAP?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.