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Cursor in wrong place in FF 29, misses small links, empty bar at top of page.

  • 7 replies
  • 2 have this problem
  • 1 view
  • Last reply by mchaplin

mchaplin
mchaplin

After upgrade to FF29 I have an empty bar at the top of the window. This comes and goes jumping the page up and down.

When present, it displaces the page by about 5-10 pixels. This means the cursor is positioned wrong. For small controls like options, your click misses.

Windows 7, vertical orientation screen.

After upgrade to FF29 I have an empty bar at the top of the window. This comes and goes jumping the page up and down. When present, it displaces the page by about 5-10 pixels. This means the cursor is positioned wrong. For small controls like options, your click misses. Windows 7, vertical orientation screen.

Chosen solution

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need close and restart Firefox after toggling this setting.

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (localstore-safe.rdf file)
  • JavaScript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected
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All Replies (7)

FredMcD
FredMcD

Your system details show;

Adobe PDF Plug-In For Firefox and Netscape 11.0.06
Adobe PDF Plug-In For Firefox and Netscape 10.1.9

cor-el
cor-el
  • Moderator

Does this toolbar show as a choice to disable when you right-click on empty toolbar area?

mchaplin
mchaplin Question owner

Its an empty bar above the Menu bar (see screen shot). It comes and goes depending on what the mouse hovers over.

When present it has the effect of displacing the page down about 5-10 pixels but the mouse isn't aware of that, so its in the wrong place.

You should be able to click on a small control eg option or checkbox with the tip of the mouse arrow.

I have the choices to remove the Menu bar, Bookmarks Toolbar and the Web developer Toolbar. I can remove all 3 and the empty bar still remains.

mchaplin
mchaplin Question owner

Bump?

mchaplin
mchaplin Question owner

Safe mode fixed this, but manually disabling all the Extensions didn't. I then replaced the Default theme - still no joy.

cor-el
cor-el
  • Moderator

Chosen Solution

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need close and restart Firefox after toggling this setting.

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (localstore-safe.rdf file)
  • JavaScript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected
mchaplin
mchaplin Question owner

That's fixed it - Thanks cor-el.