It’s possible that another running program or a previous instance of Firefox that did not close properly is interfering with the Firefox update process. This error can also occur if you share your computer with other users, and another user’s account is still logged in with Firefox running....
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The online chat group is a small-scale multiuser social networking platform, in which users participate in the discussions and send and receive information. Online chat group service providers are concerned about the number of active members because more active members means more advertising revenues. ...