LanguageEXTRA
Mozilla Firefox crash report
File type: Text file
An .extra file extension is related to the Mozilla Firefox a web browser for various platforms. An .extra file stores crash report.
What is extra file?
File type category:
Text file
Date updated: June 27, 2025
The extra file extension is associated with the Mozilla Firefox. File contains information about settings of the Firefox, when the Firefox crashed.
The extra file is in a simple text format and is readable in a text editor.
Firefox uses Google BreakPad, crash reporting software for generating .extra files.
How to open extra file?
Use text editor to view content of the *.extra crash report file.
How to convert extra file?
Rename *.extra extension to *.txt and you will be able to open extra file in any text editor and transform it to any other text formats.
Suggested software to open extra file:
Associated software actions with the extra file
Software applications that can open extra files:
NotePad++ text editor (Microsoft Windows)
Sublime Text (Microsoft Windows)
Microsoft Windows NotePad (Microsoft Windows)
Sublime Text for Mac (Apple macOS / Mac OS X)
TextEdit (Apple macOS / Mac OS X)
Sublime Text for Linux (Linux/Unix)
gedit (Linux/Unix)
Software applications that can edit extra files:
Sublime Text (Microsoft Windows)
Sublime Text for Mac (Apple macOS / Mac OS X)
Sublime Text for Linux (Linux/Unix)
Software capable of saving extra files:
Sublime Text (Microsoft Windows)
Sublime Text for Mac (Apple macOS / Mac OS X)
Sublime Text for Linux (Linux/Unix)
Software apps that create extra files:
Firefox (Microsoft Windows)
Firefox for Mac (Apple macOS / Mac OS X)
Firefox for Linux (Linux/Unix)
Breakpad (Multiplatform)
Software applications that handle other tasks involving extra files:
Breakpad (Multiplatform)