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after installing on xperia x10 the mobile has slowed down considerably

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i have installed Firefox on SE xperia x10 running android 2.1. After installing it, the mobile has become very sluggish, slow ; some time non-responsive. many times I am unable to take call when i can hear bell ringing and screen has become non-responsive. I have installed this to use Citrix enabled corporate applications, they all work wonderfully, no complains. Earlier I was using Opera Mobile and never had this problem. Now I have removed all browsers except default and firefox. If I remove firefox then all above issues disappear.

i have installed Firefox on SE xperia x10 running android 2.1. After installing it, the mobile has become very sluggish, slow ; some time non-responsive. many times I am unable to take call when i can hear bell ringing and screen has become non-responsive. I have installed this to use Citrix enabled corporate applications, they all work wonderfully, no complains. Earlier I was using Opera Mobile and never had this problem. Now I have removed all browsers except default and firefox. If I remove firefox then all above issues disappear.

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Sorry about that - current versions of Firefox does not run very well on the Sony Ericsson Xperia X10 because it requires more RAM than the X10 has available. For details, see the system requirements.

We're working on improving Firefox's performance and reducing memory use, but for now we don't recommend installing it on this device.