A cspl file extension is related to the Mozilla Firefox software.

Detailed description

Software that open cspl file

Add comment

CSPL file extension - Firefox data

What is cspl file? How to open cspl files?

File type specification:

Various data file type icon Various data file type

The cspl file extension is associated with the Firefox, an internet browsing tool for Microsoft Windows, Apple Mac OS X (macOS), Linux and other platforms developed by Mozilla Corporation.

The cspl file stores some kind of data used by Firefox.

Updated: April 17, 2024

The default software associated to open cspl file:

Firefox icon

Mozilla Corporation logoFirefox  Microsoft Windows software

Company or developer:
Mozilla Corporation

Firefox is very popular free open source web browser with many features.
Firefox supports tabbed browsing, private browsing, spell checking, incremental find, bookmarking etc. Other features can be added via extensions and add-ons, such as NoScript, Tab Mix Plus. FoxyTunes, Web Developer.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .cspl file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open cspl file, edit cspl file, convert cspl file, view cspl file, play cspl file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with cspl file - Firefox data

Click on the software link(s) for more information. Suggested software applications use cspl file type for internal purposes and/or also by different way than common edit or open cspl file actions.

Microsoft Windows:

Apple macOS / Mac OS X:


Previous file extension
CSP file extension

File-Extensions.org > Various data file types

Next file extension
file extension CSPLAN


Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed