some times letters get deleted while typing in firefox

[J]

On Thu, Sep 16, 2010 at 15:17, Tapas Mishra <mightydreams at gmail.com> wrote:
> I am having very strange problem.
> I am using Ubunu 10.04 64 bit and Firefox 3.6.8
> While typing the letters in search box or input box when on a web page
> I fill the
> required fields while I am typing some thing in the mid of typing
> every thing gets deleted
> and I have to retype it and same thing in between happens.
> Then I again retype it.
> Like this the cycle continues.
> For example on Top Right hand corner I can see a search box of Google
> in my firefox.
> Now suppose I want to search "How to write device driver on Linux"
> and I start typing
> I have typed "How to write device " and suddenly all the text "How to
> write device"
> gets deleted as if it was selected by pressing Control+A and deleted
> (which I had not done)
> I again type it and then again same thing happens.
> The only work around for this I found is I open gedit and type what
> ever I want to type
> and Copy Paste that to required search box or input box where ever required.
>
> Some people on this list suggested me to disable Addons. I do not have
> any add on installed on my system.
> But this problem does persist.I had asked this question earlier and I
> am asking again.As this is very annoying experience.

You're not alone, I've seen the same thing from time to time with FF as well.

Are you using a laptop with a track pad?  My first thought was that as
I was typing, I was getting too close to the track pad and was somehow
triggering a highlight that way (my trackpad supports scrolling which
can be used to highlight text).  However, I don't think that's the
actual cuplrit.

For me, I usually can get out of that infinite 'Select All" loop
you're describing by moving the pointer out of firefox and clicking a
few times elsewhere to ensure focus is out of FF.  Then single clickng
back into the search box and typing whatever it was I was typing
originally.

I haven't noticed it since upgrading to the Maverick beta, though, so
it could be something that was resolved in a firefox update.  I'm
currently running 3.6.10+build1+nobinonly-0ubuntu2

Cheers
Jeff