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How to permanently disable the dialog pop up box "This browser is not supported for running this application" in firefox

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We are automating a web application using a test tool . The tool captures the GUI objects. For some reason the tool is not unable to capture the dialog box with OK button This browser is not supported for running this application" in firefox. Please contact System admin

We want to get rid / permanently disable this dialog box to appear so that the automation script doesn't have to handle this dialog box. Please let us know what settings we should change in firefox

We are automating a web application using a test tool . The tool captures the GUI objects. For some reason the tool is not unable to capture the dialog box with OK button This browser is not supported for running this application" in firefox. Please contact System admin We want to get rid / permanently disable this dialog box to appear so that the automation script doesn't have to handle this dialog box. Please let us know what settings we should change in firefox

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As far as I know, that text is not a text residing in Firefox, so there would be no way to disable it, which also kind of matches the idea of not being able to click the OK button. Any idea of other software displaying it? I hope it isn’t malware?

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