Change Timezone (Time Shift)
is a Firefox addon that let you easily and quickly change your timezone to a desired value and protect your privacy.
Simply open addon options page and select a desired timezone from the drop down list. Once a timezone is selected, adjust the name and value fields if needed. Then reload all tabs for changes to take effect.
Please note that this addon takes into account the daylight saving time. If you want to turn off the addon, simply click on the toolbar icon once (icon color will turn to light grey). By default, the addon is active (toolbar icon has dark grey color).
In order to report bugs, please fill the bug report form in the addon's homepage