Work Offline is a mode of the Firefox web browser, and the Mozilla Thunderbird email client as well, which prevents the browser from using a computer's or network's Internet connection.
Users can switch to work offline in the file menu of the browser. A click on File > Work Offline changes the mode so that no Internet connections are made by the browser.
A checkmark is placed next to the entry if the Internet browser is set to offline.
Some Firefox users experience problems with the state as the web browser may enter offline mode automatically when it detects no Internet or network connection.
While that works out great most of the time, it can be problematic if your Internet connection is up but Firefox does not detect it properly.
This happens for instance if the computer is connected through a wireless connection, for instance using Wi-Fi on an airport or in a hotel, or even at home or while you are on the road.
Some users are reporting that Firefox starts always offline as their Internet connection is not recognized properly by the web browser on start up.
Firefox 3.6 comes with a new setting that prevents the browser from going offline, ever. The preference does not exist by default and needs to be added to the configuration manually.
Firefox users need to enter about:config in the address bar which opens the configuration listing. The first thing you should do now is enter network.manage-offline-status into the search on top to find out if the preference exists in the browser.
If it is not listed, right-click on the white page on the screen and select New > Boolean from the context menu.
Paste the parameter's name into the preference name field and hit enter. Select false as the value for the preference to disable automatic offline mode in the browser.
If the parameter exists already, make sure it is set to false. You can double-click it to change its value.
The new parameter exists in Firefox 3.6 and all newer versions of the browser. You can still set the browser to enter offline mode manually though by tapping on the Alt-key, and selecting the option under the File menu.
Some users have reported that setting the option to false does not prevent the browser from going into offline mode. First, it is important to note that the browser needs to be restarted before the setting becomes active.
You can modify the following preference in the browser to see if they make a difference:
You can use browser extensions that help you cope with the issue:
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