Firefox/Mozilla/Thunderbird HTML5 Storage by Firefox/Mozilla/Thunderbird

What is Firefox/Mozilla/Thunderbird HTML5 Storage?

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Overview

How do I clean Firefox/Mozilla/Thunderbird HTML5 Storage?

Firefox/Mozilla/Thunderbird HTML5 Storage may store excess, temporary data on your computer that can take up valuable space. It may also store private data such as passwords or browsing history in the registry or on the file system. The easiest way to erase this data is by downloading AppCleaner, it is 100% free and about 1MB in size. A portable version is also available.

Clean Firefox/Mozilla/Thunderbird HTML5 Storage
with AppCleaner

If you want to clean Firefox/Mozilla/Thunderbird HTML5 Storage manually, you can follow the steps outlined below. There is one location in the file system where Firefox/Mozilla/Thunderbird HTML5 Storage stores data that can be cleaned.

Files

To clean your file system from files stored by Firefox/Mozilla/Thunderbird HTML5 Storage and to gain free disk space, examine the following file system location. First of all, open a command prompt window:

• Hit the Windows key , usually located in the lower left of your keyboard between the Ctrl and Alt keys.
• Windows XP/Vista/7: Click Run...
• Type cmd
• Hit Enter

Now list all the files stored by Firefox/Mozilla/Thunderbird HTML5 Storage that can be cleaned:

1. Type dir %APPDATA%\Mozilla\Firefox\Profiles\*
2. For all the folders that were listed in the previous step:
   Type dir {folder}\storage where {folder} is one of the folders listed in the previous step.
3. Type dir %APPDATA%\Mozilla\SeaMonkey\Profiles\*
4. For all the folders that were listed in the previous step:
   Type dir {folder}\storage where {folder} is one of the folders listed in the previous step.

Once you have identified the files stored by Firefox/Mozilla/Thunderbird HTML5 Storage that you want to clean, delete them using the del command or Windows Explorer.

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