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wot Wužiwar Firefox da7dfe dnja Sept. 27, 2011 · trajny wotkaz

Same as user klint mentioned: slows down enormously add-on manager display when many add-ons (60+ here). I'll use it with Thunderbird though (very few extensions). Handy. I still don't understand why displaying add-on compatibilities is not default to Firefox and Thunderbird.