I use Firefox 18.0 with Xubuntu 12.04 on a lenovo Laptop T60.

I like to use the middle button above the touchpad to do a middle-click on a link to open that page in a new tab. It works with the mouse and it worked with my former laptop, a Thinkpad T41 with very similar touchpad.

I can open a link in a new tab too if I hit the left and right button meanwhile, but that's not comfortable.

I find this with synclient:

synclient -l

Parameter settings:

    LeftEdge                = 1752

    RightEdge               = 5192

    TopEdge                 = 1620

    BottomEdge              = 4236

    FingerLow               = 25

    FingerHigh              = 30

    FingerPress             = 256

    MaxTapTime              = 180

    MaxTapMove              = 221

    MaxDoubleTapTime        = 180

    SingleTapTimeout        = 180

    ClickTime               = 100

    FastTaps                = 0

    EmulateMidButtonTime    = 75

    EmulateTwoFingerMinZ    = 282

    EmulateTwoFingerMinW    = 7

    VertScrollDelta         = 100

    HorizScrollDelta        = 100

    VertEdgeScroll          = 1

    HorizEdgeScroll         = 1

    CornerCoasting          = 0

    VertTwoFingerScroll     = 0

    HorizTwoFingerScroll    = 0

    MinSpeed                = 1

    MaxSpeed                = 1.75

    AccelFactor             = 0.0398089

    TrackstickSpeed         = 40

    EdgeMotionMinZ          = 30

    EdgeMotionMaxZ          = 160

    EdgeMotionMinSpeed      = 1

    EdgeMotionMaxSpeed      = 401

    EdgeMotionUseAlways     = 0

    TouchpadOff             = 0

    LockedDrags             = 0

    LockedDragTimeout       = 5000

    RTCornerButton          = 2

    RBCornerButton          = 3

    LTCornerButton          = 0

    LBCornerButton          = 0

    TapButton1              = 1

    TapButton2              = 3

    TapButton3              = 0

    ClickFinger1            = 1

    ClickFinger2            = 1

    ClickFinger3            = 0

    CircularScrolling       = 0

    CircScrollDelta         = 0.1

    CircScrollTrigger       = 0

    CircularPad             = 0

    PalmDetect              = 0

    PalmMinWidth            = 10

    PalmMinZ                = 200

    CoastingSpeed           = 20

    CoastingFriction        = 50

    PressureMotionMinZ      = 30

    PressureMotionMaxZ      = 160

    PressureMotionMinFactor = 1

    PressureMotionMaxFactor = 1

    ResolutionDetect        = 1

    GrabEventDevice         = 1

    TapAndDragGesture       = 1

    AreaLeftEdge            = 0

    AreaRightEdge           = 0

    AreaTopEdge             = 0

    AreaBottomEdge          = 0

    HorizHysteresis         = 25

    VertHysteresis          = 25

    ClickPad                = 0

I guess LTRB stands for left, top, right, bottom - MT for middle-top is missing.

Btw: Middle Click for pasting works. I'm curious how that fits together.