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After installing Epson Stylus SX535WD printer on Windows 7 computer Firefox produces a pop-up error box when I launch Firefox or open Web page

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After installing my new Epson Stylus SX535WD printer on my Windows 7 32 bit computer, Firefox now produces a pop-up error box every time I launch Firefox or open a new Web page in it the following error box pops up multiple times: [JavaScript-Application] Server could not log you in. This error has never error occurred before I installed the printer.

After installing my new Epson Stylus SX535WD printer on my Windows 7 32 bit computer, Firefox now produces a pop-up error box every time I launch Firefox or open a new Web page in it the following error box pops up multiple times: [JavaScript-Application] Server could not log you in. This error has never error occurred before I installed the printer.

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Posting the same question multiple times will not get you an answer any faster..