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After update to latest Firefox 69 there is one problem with bold fonts rendering. Below is the screenshot of old browser (left, good) and new version. The problem is in bold fonts - the blue color is not so intensive in new version as should be:

enter image description here

I noticed, that in new version cairo font rendering was removed as it was in old browser: 

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

Perhaps the problem is in skia? If in old browser I set direct2d1.1,skia,cairo - bold font colors becomes like in new version - bad.. Is there any solution?

Another screenshot: enter image description here

Or perhaps just to switch to Firefox ESR? It has cairo rendering even on newest version 68.0.1.

Ernestas Gruodis
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2 Answers2

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What actually worked for me was to change gfx.font_rendering.cleartype_params.rendering_mode to 5.

You are welcome!

dirdi
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Ish
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2

....After hours of searching - found a simple solution - setting at about:config: gfx.font_rendering.cleartype_params.force_gdi_classic_max_size - just increased the default value to 100 - now all fonts up to size 100px (or infinity - not matters :) are processed by classic GDI. Backed to business :)

Ernestas Gruodis
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