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letters a bit fuzzy in W10 V1703

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  • Trả lời mới nhất được viết bởi Tonnes

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I just updated W10 V1703 this AM. I noticed that everything appears a bit fuzzy. Letters are lacking crispness. I don't have this problem with Chrome or Edge. I tried changing the display settings slightly with no effect. I'm pretty sure I don't need new glasses. Am I imagining this-I don't think so. If I saw the same thing in the other browsers then it would be my computer/monitor, but, I'm not. So I can only assume it's something with FF. I look forward to anyone's comments. Thanks

I just updated W10 V1703 this AM. I noticed that everything appears a bit fuzzy. Letters are lacking crispness. I don't have this problem with Chrome or Edge. I tried changing the display settings slightly with no effect. I'm pretty sure I don't need new glasses. Am I imagining this-I don't think so. If I saw the same thing in the other browsers then it would be my computer/monitor, but, I'm not. So I can only assume it's something with FF. I look forward to anyone's comments. Thanks

Tất cả các câu trả lời (20)

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Not limited to browsers, are you absoutely sure this happens with Firefox only? I ask because there are lots of reports of this issue according to search engines, some of them claiming even Microsoft has no proper solution for them.

However if you are sure, this question offers a possible solution for the same issue limited to Firefox: untick Enable Adobe Flash protected mode in the Add-ons Manager > Plugins section. See Adobe Flash protected mode in Firefox for more info - Note that the option is currently under the More link for Shockwave Flash.

The issue may also be caused by the Segoe UI font, so make sure that isn’t set as default in Firefox.

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Thank you for your prompt reply. I tried a couple of things you suggested. Neither the disabling Flash protected mode or the font made any difference. I also tried starting FF in safe mode with no effect. I don't understand how Flash would affect anything when you're not using Flash. Thanks

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I tried resetting the layout.css.devpixel to 1.0 as suggested your attached notes. I saw very little difference. Another thing that I neglected to mention that the characters seem to more bold than usual which makes them appear a bit fuzzy. Again, not having this issue in either Edge or Chrome. I guess I'll have to start using Chrome until FF figures out a fix.

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I think this should be submitted to Mozilla as a bug report

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Someone at Microsoft support suggested I try a FF refresh. I did that with no effect.

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Perhaps someone at Microsoft should go over the numerous threads and issues reported and related to fonts and Windows 10 updates. ;) An OS should not offer updates that can break applications in any way. This is not a Firefox bug.

You could however try one of these options as a workaround:

  • Disable Hardware Acceleration in Options > Advanced panel (on the left) > General tab, and restart Firefox. Does the issue still occur?

If that helps, you can leave this setting unchecked. If not (or even if it does help):

  • Open about:config in your address bar and press Enter.
  • Enter gfx.font_rendering.cleartype_params.rendering_mode in the search field. Is the value -1 and not displayed as bold?
  • If not, right-click the preference, choose Reset (this should restore it to -1) and restart Firefox.
  • If it is -1 and not bold, right-click the preference, choose Modify and change the value to 2, then restart Firefox.

If that helps, you can reenable hardware acceleration if disabled earlier.

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Thank you for your prompt reply. I disabled HDW acceleration and noticed an slight improvement in clarity. The GFX setting was -1 and not bold so I modified the setting to 2 and reenabled HDW acceleration. I did notice a little more improvement. Still not at the level of clarity that I'm seeing Chrome or Edge, but, an improvement. Just out of curiosity could you explain the interaction between W10 and FF that would cause this issue and what happens when the HDW acceleration was disabled and changing the the value to 2?

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You could have a look at this bug for info related to hardware acceleration and the preference’s values, including screenshots. Note that the results may vary per user - some appear to have better results by setting 5 as the value.

Unfortunately I’m not very familiar with Windows 10 so I can’t point to "the" single setting (if there is one) that would need to be changed, but that’s also because a number of related settings appear to be available in Windows 10. And of course, the issues reported in Microsoft forums for instance don’t make this easier - even using 2 screens with different resolutions could cause this to name one. Hence the above should be a workaround rather than "the" solution. Someone else more familiar with it may be able to give a better reply.

Firefox did however switch from cairo to skia for particular types of content rendering when not using Direct2D as of Firefox 52 (see this bug and this page), so that’s a setting you could try to change. If that turns out to be causing your issue, it would of course mean it’s not related to the 1703 Creators Update. You could revert this change as a test by swapping both types (i.e. their order) as follows using about:config:

  • gfx.canvas.azure.backends = direct2d1.1,cairo,skia
  • gfx.content.azure.backends = direct2d1.1,cairo,skia

I also found this bug reported, claiming fonts to be blurry with Multiprocess enabled. You could try switching that off by setting these 2 preferences in about:config:

  • browser.tabs.remote.autostart = false
  • browser.tabs.remote.autostart.2 = false

And finally, when looking for your graphics driver version (22.21.13.8205), I wondered if it’s the most recent version available - Microsoft currently reports 22.21.13.8253 to be their most recent version if I saw that right. You could try to see if an update for it is offered either by them Windows Update or Nvidia.

I‘d be happy to hear your feedback.

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I checked the gfx items and found that they are both set as you indicated. So I'm not sure if I understand what I should change if anything.

As for the browser tabs items the first item is already set as false. The second item has been set to True eventhough I never changed that item. It says user setting. When I changed something else it must have changed this item. You'll need to explain that to me.

As for the Nvidia driver I asked Dell to confirm what the most current driver is for my board. I'll let you know what they say.

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The preferences above indicate where to change them to. So for the gfx preferences, both should be set as direct2d1.1,skia,cairo by default (and not displayed as bold), but you can try switching them to direct2d1.1,cairo,skia, after which they should display as bold. If they were already changed into this sequence, that’s an interesting fact. Are you sure they were?

The browser.tabs.remote.autostart item should be set to false by default, and browser.tabs.remote.autostart.2 to true, AND bold allright (and user set, even though this is not done by the user.) You would only need to toggle browser.tabs.remote.autostart.2 to false. You can toggle this by double-clicking it or choosing Toggle in the context menu.

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The GFX items are not displayed as bold. As for the Browser items do you want me to change autostart 2 to false?

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Yes, please read again. You would need to set all 4 preferences exactly to how they were written above, if not set already. So for the first 2, you would change the order of skia and cairo. For the browser items, only the last one needs to be changed. For any of them, a Firefox restart is needed for them to work. If you open Help > Troubleshooting information (or enter about:support in the address bar and hit Enter), you'll see these items in the Diagnostics section, so these values should change after modifying them and restarting Firefox.

However, you can start with the first 2 and restart Firefox to see if that helps while leaving the others untouched, and do similar for the last after reverting the first 2 (choose Reset using right-click) if that didn’t help. That is, if you want to pinpoint what helps, rather than just doing all at once. That also goes for e.g. gfx.font_rendering.cleartype_params.rendering_mode you previously changed - always try to change one thing at a time.

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I changed everything you suggested one by one. The result being no effect. So unless you and/or Firefox can figure this out I'm going to use Chrome or Edge. No issues with either one. I appreciate all the help.

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I would like to offer one more comment in regards to your suggestion about changing the GFX.font_rendering.cleartype >>>>>> function-DON'T. I changed it to 2 as you suggested and it completely broke FF to the point that I couldn't access about:config and I had to uninstall and reinstall FF

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Is ClearType still enabled in Windows?

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arejfour said

I would like to offer one more comment in regards to your suggestion about changing the GFX.font_rendering.cleartype >>>>>> function-DON'T. I changed it to 2 as you suggested and it completely broke FF to the point that I couldn't access about:config and I had to uninstall and reinstall FF

I find that hard to believe, also because you changed it earlier without breaking Firefox (unless you meant 5 above), which should be possible as you can see in the bug mentioned. Additionally, reinstalling Firefox without creating a new profile will still use the same profile and hence settings, so that shouldn’t fix it, and if changing that pref (now?) causes Firefox to break, that may be caused by something else in Windows not set correctly, or a second pref in Firefox. But to summarize, you can and perhaps should always keep a copy of the profile folder or at least the prefs.js settings file from the profile when experimenting, so you would only need to copy that file back instead of reinstalling or creating a new profile when it’s inaccessible.

Speaking of, I would create a new profile anyway (and not install add-ons) just to see how that behaves. Can you do that? Chances are some other Firefox preferences do not or no longer comply with some Windows font settings, so Firefox may set them differently for new profiles. Finding the proper preference to change in the current profile may take ages.

My guess is your font settings in Windows are still incorrect somewhere, caused by the update and possibly even leading up to show blurry fonts in Windows sections, so not limited to other applications. You could have a look at the articles below and try everything you find there - I’m sure the answer is in there and the issue is not limited to Firefox only. You could start by uninstalling the graphics drivers, or check the 125% setting and DPI scaling options. If nothing helps, personally I would uninstall the entire update and wait for Microsoft to release a follow-up patch.

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When I uninstalled FF and did a clean install I deleted the Firefox folder. It only took 5 mins to reset my settings. What I don't understand is why I'm not having this problem with either Edge or Chrome-only FF. That's got me stumped. DPI scaling is set at 100%. I did see saw your comments and others regarding the blurry font issue but, so far, the only other application that I've even remotely seen a very minor issue is Office 365. I guess I have to get new glasses or wait for Microsoft to address this issue. I presume that getting new glasses will be an awful lot quicker than Microsoft fixing the problem.

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While I'm encouraged by FF's constant updates to make it a better browser this ongoing problem I'm having with the fuzzy letters/fonts has not been addressed despite everyone's suggestions as to how I can remedy the problem. None of which have worked. Being this problem does not occur in either Chrome or Edge I'm using one of those browser until such time that FF addresses this problem which is unique to FF. Thanks

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Well I think I resolved most of the issues. I got a new monitor Dell P2417H and now the fuzziness has gone away. I also added the Theme and Font extension and made a few adjustments with that. I reset the about:config changes, at least, the ones I remember. Just to be sure how do I reset the about:config settings to the original default settings all at once?

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