Firefox disrupted browser market and now Chrome&#x2F;IE are making a trio not too far from each other, it is now a uphill battle for Mozilla.<p>Thunderbird is the only choice across platform for Desktop usage. I use it daily and don&#x27;t mind paying for it.<p>On the other hand, since Microsoft is porting everything to Linux nowadays it may one day port Outlook to Linux, who knows though I have never trusted them and I have not used it for centuries.<p>Please keep Thunderbird evolving ahead.