User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1b1) Gecko/20060806 BonEcho/2.0b1 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1b1) Gecko/20060806 BonEcho/2.0b1 The clickable area of the back button is smaller now than previously. The new back button appears to have a 5px wide gap to the left of it which is not-clickable. In addition to this, 14px on the right hand side are dedicated to the down arrow for dropping down the history. This results in the clickable area being relatively small and will increase the rate of misses. In my opinion, the user should be able to move his mouse pointer to the very left hand edge of that toolbar, which when maximised is the left hand side of the screen, and click, however currently the user will need to move it to the left hand edge and then back 5 pixels to the right, or stop the mouse pointer 5 pixels from the edge, which requires more effort. Reproducible: Always Steps to Reproduce: 1. Click in the small gap to the left of the back button Actual Results: Nothing Expected Results: Back button click, back operation. Wasn't sure whether to mark as trivial or enhancement, chose trivial as this represents something that used to work better.

There are several issues combined here: * the Back button does no longer extend until the left screen border when the window is maximized (no longer adherent to Fitts' Law) * at least under Windows, the buttons no longer display their clickable area when hovering over them (see bug 347416) * most if not all buttons have lost their left/right padding in favor of non-clickable margins A complete fix for bug 347416 would take care of these issues. Confirming anyway in case that doesn't happen (although this might be a DUPE).

bug 347416 will not effect this since the standard navigation toolbar items are intentionally not having a native style.

(In reply to comment #2) > bug 347416 will not effect this since the standard navigation toolbar items are > intentionally not having a native style. That may be changed by followup patches to bug 347416.

This may be vaguely related to bug 351117.

This bug is fixed for me in the last couple of branch builds.

This bug presents in Mozilla/5.0 (Windows; Windows NT 6.1; en-US; rv:2.0b2pre) Gecko/20100708 Minefield/4.0b2pre Because of the new theme.