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SLES 15.5 QU2 in Mozilla Firefox 115.8.0esr was not supporting window.close()

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SLES 15.5 QU2 in Mozilla Firefox 115.8.0esr was not supporting window.close() and it's showing like "firefox already running , but is not reponding to use firefox you must frist close the exiting firefox process , restart your device , or use a different profile"

SLES 15.5 QU2 in Mozilla Firefox 115.8.0esr was not supporting window.close() and it's showing like "firefox already running , but is not reponding to use firefox you must frist close the exiting firefox process , restart your device , or use a different profile"

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Mozilla Firefox 115.8.0 version title is not appending to the window name .

example : old version we can see window name is "<title> Mozilla Firefox ". Mozilla Firefox 115.8.0 this version is showing only " Mozilla Firefox ".

please help me how i can fix the issues to append the title name to window name . like as old version Brower.