I'm creating a kiosk environment and I have the majority of firefox locked down using plugins. I need to disable safe-mode as part of the lock down requirements. I've attempted to do this by modifying the omni.ja archive using the following steps: 1) Downloaded the "optimizejars.py" script from the firefox repo. 2) Ran the script using "python optimizejars.py --deoptimize .\ .\ .\" 3) Changed the extension to ".zip" 4) Unzipped the archive using Windows 7 unzip utility 5) Modified the contents of "/chrome/browser/content/browser/safeMode.xul" 6) Re-zipped the archive using Windows 7 unzip utility 7) Renamed extension to ".ja" 8) Ran the python script again as previously, except with the --optimize flag. 9) Placed it back into the mozilla firefox folder. I've tried the script using the standard python interpreter version 2.7.3. (both x86 version and amd64 version on the off chance that it would make a difference). I've also tried this using the ActiveState python interpreter version 2.7.2.5 (again, both x86 and amd64 versions) No matter what I try, after I replace the omni.ja file with my modified version, firefox crashes on startup. I've also tried these steps exactly the same way without modifying anything in omni.ja. Just going through the process of unzipping, using the script, zipping back, and placing in the firefox folder...still no go. Any help would be appreciated.