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Black boxes

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New Contributor

Black boxes

How do you disable the Default Theme on Firefox besides putting it in Safe Mode? It is actually causing the problem, as Hardware Acceleration, drivers, and Add-ons are not.

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15 REPLIES
Legendary Contributor

Re: Black boxes

Could you describe the problem of "black boxes" in a little more details? are you saying that the icons are rendering as black boxes instead of normal icons?

Is this new after a recent version upgrade of Firefox?

You can switch your theme from the default to a different one by downloading something new from the Add-ons site. Firefox supports both full themes that have their own icons, and lightweight themes (also called personas) that simply change the background.

However, whatever is afflicting your Firefox might also affect a new theme, so it's probably worth chasing that a bit further... it really does sound like display artifacts associated with a graphics driver incompatibility. If the regular hardware acceleration checkbox --

orange Firefox button (or Tools menu) > Options > Advanced> "General" mini-tab > uncheck "Use hardware acceleration when available"

-- doesn't affect the toolbar area, hopefully another volunteer is familiar with a setting that does.

Site Moderator

Re: Black boxes

Can you attach a screenshot?

Use a compressed image type like PNG or JPG to save the screenshot.

New Contributor

Re: Black boxes

It's like as much as I have a feeling you have no idea what the hell this is. I have to use this nick. Sorry, pal. It's sure as hell not hardware acceleration, Chrome displays pictures fine.

2013-07-05-22-10-59-d267fc.png
New Contributor

Re: Black boxes

Sorry for my abrasive nature.

Another thread, no reply, of course. Post with bug second to last. I think we should refer to this as the "ugly rectangle" bug. It withstands multiple uninstallations/reinstallations so I assume it might be a hardware thing. No, it is not hardware acceleration.

It's one step above the no-stylesheet, since it gets rid of most gradient backgrounds I see

2013-07-05-22-25-51-4b9dfe.png
Site Moderator

Re: Black boxes

You may have switched on caret browsing.

You can press F7 (Mac: fn + F7) to toggle caret browsing on/off.

  • Tools > Options > Advanced > General > Accessibility: [ ] "Always use the cursor keys to navigate within pages"
Legendary Contributor

Re: Black boxes

Hi personaboveisworthless, it's hard to distinguish between what you deliberately changed and what you don't like.

  • What kind of Windows theme are you using (e.g., Aero, Basic, High Contrast)?
  • In your first screen shot, the black mark appears to correspond not to an image but to a generated box with a narrow border that is used to make the post appear like a call-out (see attached screen shot). As far as I can tell, the associated CSS is:

    .answers .main-content:before {border-color:transparent #fff; border-style:solid; border-width:11px 11px 11px 0; height:0; content:''; left:-11px; position:absolute; top:20px; width:0}
  • Where is the problem in the Yahoo! screen shot?
2013-07-07-16-46-21-035c66.png
Site Moderator

Re: Black boxes

Make sure that you haven't enabled a High Contrast theme in the Windows/Mac Accessibility settings.

Make sure that you allow pages to choose their own colors.

  • Tools > Options > Content : Fonts & Colors > Colors : [X] "Allow pages to choose their own colors, instead of my selections above"

Note that these settings affect background images.

New Contributor

Re: Black boxes

I'd like to clarify more. Based on my testing, it might be caused by vimperator. Once disable vimperator, such small black boxes disappear. If enable vimperator, as long as not using mouse to scroll the page or scroll slowly, they do not appear. Using keyborad to scroll, like C-u,d,f,b or j,k, such small boxes do not appear. Maybe it is a problem related to vimperator. If disable the "using smooth scrolling", it turns to be better when using mouse.

FYI, my laptop: Archlinux + KDE + firefox 24.0

Site Moderator

Re: Black boxes

Hi oracleyue

Can you attach a screenshot?

Use a compressed image type like PNG or JPG to save the screenshot.