Open JSM File
JSM extension files can have various formats, some of them described below:
JAWS
JSM is a file extension commonly associated with files designed for JAWS Script Messages.
JAWS was developed by Freedom Scientific, Inc. which defined the JAWS format standard as a Script Message, hence the acronym for JSM (JAWS Script Message).
The JAWS message format replaced the need to concatenate message constants to produce a single message.
The JSM format also makes it very easy to modify your messages.
With JSM it is not necessary to enclose the entire text of the message in quotes.
Mozilla Firefox
In this section, JSM is a type of file used by Firefox as a JavaScript Module.
About Mozilla Firefox
Mozilla Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation.
One of the most notable features of Mozilla Firefox is that its rendering engine, Gecko, is capable of implementing current and anticipated web standards.
The JSM file is a script written in javascript that adds or enhances the browser's own features.