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The cursor jumps to wherever the pointer is while typing in text boxes.

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While typing in a text box, the blinking cursor will jump to wherever the mouse pointer is and begin inserting the typing there. It happens both on external mouse and on touchpad. It's only on Firefox, I've tested IE and it's fine. Sometimes it is the ' that causes it (I read up on the "jump to find" bug), but it seems to be mostly the spacebar that sets it off. I've had it happen on various websites, blogs, emails, internal site mailboxes, seems to be everywhere. Sometimes a FF restart helps, sometimes a computer restart helps, sometimes nothing helps.

I've also had site pages jump "back" in the middle of typing in a text box as well. At first I thought I was hitting the touchpad while typing by mistake but it happens with the external mouse as well. I have the touchpad disabled while ext. mouse is used.

FF is Version 3.6.10, and I'm on laptop.

Plleeeeezzze don't tell me I have to go back to IE. ewwwww

While typing in a text box, the blinking cursor will jump to wherever the mouse pointer is and begin inserting the typing there. It happens both on external mouse and on touchpad. It's only on Firefox, I've tested IE and it's fine. Sometimes it is the ' that causes it (I read up on the "jump to find" bug), but it seems to be mostly the spacebar that sets it off. I've had it happen on various websites, blogs, emails, internal site mailboxes, seems to be everywhere. Sometimes a FF restart helps, sometimes a computer restart helps, sometimes nothing helps. I've also had site pages jump "back" in the middle of typing in a text box as well. At first I thought I was hitting the touchpad while typing by mistake but it happens with the external mouse as well. I have the touchpad disabled while ext. mouse is used. FF is Version 3.6.10, and I'm on laptop. Plleeeeezzze don't tell me I have to go back to IE. ewwwww

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
You can use "Disable all add-ons" on the Safe mode start window to disable all extensions.
You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")