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Editorial Team
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Asked: 2026-05-23T17:28:06+00:00

I am writing a XUL application following the default structure for standalone XUL apps

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I am writing a XUL application following the default structure for standalone XUL apps – that is, I have the following files:

./application.ini
./chrome
./chrome/chrome.manifest
./chrome/content
./chrome/content/main.xul
./chrome.manifest
./defaults
./defaults/preferences
./defaults/preferences/prefs.js

What bothers me is that sometimes I run my application with xulrunner, note something wrong and go change my main.xul file. However, when I run my application again with xulrunner, the presented window has not changed! After some time – usually some dozen minutes – my update appears when I run the application.

Is there some kind of cache for xulrunner? If so, could I disable it?

I am using xulrunner 2.0 on Mac OS X Snow Leopard.

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1 Answer

  1. Editorial Team

    Yes, there is a XUL cache. To disable it you can add nglayout.debug.disable_xul_cache preference and set it to true. You can also run XULRunner with -purgecaches command line flag, this will clear XUL cache and all other caches as well (relevant once you move on to JavaScript modules or XPCOM components).

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