What is .SLT file extension?
.SLT file extension is a known file type. This section tells you everything you need to know about this extension.
Contains user profile data for Mozilla programs such as Firefox and Thunderbird; may include bookmarks, browsing history, and cached data; typically saved with a random filename, followed by the ".slt" extension.
In Windows Vista, the Firefox SLT folder is saved in the "Users\Profile\AppData\Roaming\Mozilla\Firefox\Profiles" directory. In Mac OS X, it is located in the "~/Library/Mozilla/Profiles/[profile name]/" directory.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.