Known SLT Files

Primary SLT File Association

.SLT

File Ext:	.slt
Class:	Mozilla User Profile Folder

SLT file extension may refer to a settings file that contains user profile data related to Mozilla programs. Mozilla programs may include Firefox and Thunderbird. The data stored in this file may include browsing history, bookmarks, and cached data. It is usually saved with a random file name followed by the extension SLT.

Developer:	Mozilla
File Category:	Settings Files
Folder:	HKEY_CLASSES_ROOT\.slt

Software Programs That Open The Mozilla User Profile Folder:

Mozilla Firefox by Mozilla

Windows

	Mac
	iOS

Android

Linux

Solaris

illumos

Mozilla Thunderbird by Mozilla

Windows

Mac

Linux

More SLT Files

.SLT

File Ext:	.slt
Class:	Shark LT Drawing

SLT file extension may refer to a 3D graphics, CAD-CAM-CAE file type which is related to a 2D/3D design software called Shark LT. Shark LT is available for the Microsoft Windows as well as the Apple Mac OS X operating systems. A 2D or 3D drawing created in Shark LT is stored in these SLT files.

Developer:	Encore Software Inc.
File Category:	Graphic Files

Software Programs That Open Shark LT Drawing Files:

Shark LT by Encore Software Inc.

Compatible with:

Windows

Mac OS X

.SLT

File Ext:	.slt
Class:	K-Meleon Browser Settings

SLT file extension may refer to a settings file that is related to a web browser called K-Meleon. This web browser is based on Gecko Layout Engine (Seamonkey, Firefox). K-Meleon is compatible with the Microsoft Windows operating system. Some settings for the K-Meleon is stored in this SLT file.

Developer:	Open Source
File Category:	Settings Files

Software Programs That Open K-Meleon Browser Settings Files:

K-Meleon by Open Source

Compatible with:

Windows

.SLT

File Ext:	.slt
Class:	Senlab Template File

SLT file extension may refer to a document file related to an address label printing software called Senlab. This software has been developed by Sente Limited for the Microsoft Windows operating system. The SLT file is used as a template for newly created labels.

Developer:	Sente Limited
File Category:	Data Files

Software Programs That Open Senlab Template File Files:

Senlab by Sente Limited

Compatible with:

Windows

.SLT

File Ext:	.slt
Class:	Gallery Lock Hidden Media Thumbnail

SLT file extension may refer to a mobile phone related file that is related to an Android application called Gallery Lock. Gallery Lock allows the user to hide photos and pictures on his smartphone. The SLT file is a thumbnail of the original hidden photo that is present in a hidden folder on the SD card while the actual image is hidden in an altered SLM file.

Developer:	Morrison Software
File Category:	Graphic Files

Software Programs That Open Gallery Lock Hidden Media Thumbnail Files:

Gallery Lock by Morrison Software

Compatible with:

Android

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Troubleshooting Problems Opening SLT Files

Typical SLT Opening Challenges

Mozilla Firefox is Not Installed

Double-clicking your SLT file prompts the message "%%os%% Can't Open SLT File". Generally, this is experienced in %%os%% because Mozilla Firefox isn't installed on your PC. You won't be able to double-click to open your SLT because your OS doesn't know what to do with it.

Tip: When another SLT application is installed, you can choose to open it by selecting "Show Apps" and using that program.

Wrong Version of Mozilla Firefox is Installed

Sometimes your installed version of Mozilla Firefox won't support your Mozilla User Profile Folder file. Installing the latest version of Mozilla Firefox from Mozilla is recommended. The primary cause of this problem is that your Mozilla User Profile Folder file was created by a different (newer) version of Mozilla Firefox than what's installed.

Tip: If you right-click on your SLT file, then select "Properties" (Windows) or "Get Info" (Mac), you can obtain hints about what version you need.

Regardless, most of the SLT file opening problems relate to not having the right version of Mozilla Firefox installed.

Other SLT File Opening Causes

You can still experience errors opening SLT files even with the latest version of Mozilla Firefox installed on your PC. There can be external issues inside of %%os%% that are causing these errors when opening SLTs. These issues include:

• Invalid SLT file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Accidental deletion of the description of the SLT file in the Windows registry
• Defective install of a SLT program, such as Mozilla Firefox
• File corruption affecting your SLT file
• Past or present virus infection has affected your SLT
• Device drivers of the hardware associated with your SLT file are corrupt or out-of-date
• Too many applications are open on your PC to load your Mozilla User Profile Folder file successfully