here is another solution (PERMANENT)
There are some missyncronization between k-meleon.exe and prefs by default (afaik, bug).
The advice in the linked message solves this, but there wouldn't be a GUI way to temporarily get it back in foreground - only through
about:config again.
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Using
K-Meleon-1.6.17db+ /
KM-16-S2014
1.6beta2.5 by JamesD
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Recommending K-Meleon Twin+
Try and
discuss it!!!