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firefox fonts keep changing colors.

  • 7 replies
  • 3 have this problem
  • 20 views
  • Last reply by kb7wg

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When I go to a webpage and try to start reading.......the text starts changing colors and the font changes to weird looking symbols, like an alien font and can not be read. If I highlight the text.....it will correct....but will return to alien within a min. But the biggest problem with firefox is it's inability to scroll smoothly. I have used firefox for about six yrs. now and this problem has never been fixed. I have used firefox on many hardware platforms and many windows operating systems.....firefox has always had a horrible scroll. I appreciate any help...but have tried the option settings for yrs. now to no avail. I'm afraid my frustration will take me to a different browser.

When I go to a webpage and try to start reading.......the text starts changing colors and the font changes to weird looking symbols, like an alien font and can not be read. If I highlight the text.....it will correct....but will return to alien within a min. But the biggest problem with firefox is it's inability to scroll smoothly. I have used firefox for about six yrs. now and this problem has never been fixed. I have used firefox on many hardware platforms and many windows operating systems.....firefox has always had a horrible scroll. I appreciate any help...but have tried the option settings for yrs. now to no avail. I'm afraid my frustration will take me to a different browser.

Chosen solution

Hello kb7wg, any luck if you toggle the gfx.content.azure.enabled to false ?

  1. In the Location bar, type about:config and press Enter. The about:config "This might void your warranty!" warning page may appear.
  2. Click I'll be careful, I promise!, to continue to the about:config page.
  3. type/find (or copy/paste from here) gfx.content.azure.enabled
  4. double-click on it to make it False
  5. exit firefox and restart it.


thank you

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All Replies (7)

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Chosen Solution

Hello kb7wg, any luck if you toggle the gfx.content.azure.enabled to false ?

  1. In the Location bar, type about:config and press Enter. The about:config "This might void your warranty!" warning page may appear.
  2. Click I'll be careful, I promise!, to continue to the about:config page.
  3. type/find (or copy/paste from here) gfx.content.azure.enabled
  4. double-click on it to make it False
  5. exit firefox and restart it.


thank you

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If Firefox is not compatible with your graphics card driver software, fonts can be rendered oddly. In addition to the "azure" setting, the "old" hardware acceleration setting also is potentially relevant. You can switch it off here:

orange Firefox button (or Tools menu) > Options > Advanced

On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"

This takes effect after you exit and restart Firefox.

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Can you attach a screenshot?

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

You can also try to set the gfx.content.azure.enabled pref to false or if this didn't help disable Direct2D by setting the gfx.direct2d.disabled pref to true on the about:config page and leave hardware acceleration otherwise enabled.

That way you still have the benefit from hardware acceleration, but may not suffer from rendering issues.

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Thank you kindly....the first reply fixed it. I will add your suggestion to my cheat sheet.

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forgot screenshot.

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Thank you. Have tried that for many yrs.......i have never seen a change in anything.

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Thank you very much. That seems to work very well. I really do appreciate it. The same thing has been going on with my girlfriend's rig. I also found this...."I was trying to get the same impression of ease and speed Chrome scroll has from Firefox 17 @ Linux, AMD64 and after trying several setups here is how to make your Firefox to give even better feel than Chrome:

1. Set mousewheel.min_line_scroll_amount to 40 (WAS 5) That was a great start though Firefox scroll will still appeared jerky. (Chrome has that value lower, but I liked it at 40)

2. Set general.smoothScroll and general.smoothScroll.pages to false Smooth scrolling is bad for the IT professionals giving extra pressure to the eyes and Chrome doesn't use it in the same way as Firefox does. Now we're close but still all the pages in tabs are a bit jerky.

3. And now the final ingredient. It appears that all the hieratic scroll was caused by image discard check routine. Do not turn it off just set image.mem.min_discard_timeout_ms to something really large, I set mine to 2100000000 (WAS 10000)

After that increase image.mem.max_decoded_image_kb to at least 512K (WAS 256000)

Done. In my case (Gentoo, amd64) this setup changed how the page within tab scrolls (very smooth now), how FF switches between tabs (it's now very smooth too, chrome like) and overall impression of how all the opened tabs are performing was increased. May be the change is not same within different systems but it's worth a try if you want to improve FF responsiveness. "

I tried that and it seems to tame the scrolling down quite a bit. Not sure what it all does....but it allows me to keep firefox and I do thank you. earl