working sporadically Puntuado con 4 de 5 estrellas

I LOVE this add on. Used it for three or four days, it helped me so much, I even created a autohotkey macro around this add on.
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But this add on only works sporadically now. On some pages were I need to use this add on (edit page of a wiki) No box often comes up when I press shift+R.
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There is a find and replace option in the pop up context menu, but it appears infrequently, and often not at all on the pages I need this add on.
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I did not upgrade my Firefox 22.0 manually.I have uninstalled then reinstalled this add on, disabled it then re-enabled it. This add on still does not work - there is no pop up box.