User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:41.0) Gecko/20100101 Firefox/41.0 Build ID: 20150811185633 Steps to reproduce: Updating to Firefox 40 or Firefox 40.1 (beta). OS: Microsoft Windows 7 64b Hardware: Intel 4 series internal chipset on Dell Optiplex 780 Actual results: Since the update, some text became barely readable. As a workaround, disabling "Use hardware acceleration when available" *seems* to solve the issue. On attached screenshot, the problematic version is at the right, which is, on my screen, really hard to read. Same issue affect co-workers.
OS: Unspecified → Windows 7
Hardware: Unspecified → x86_64
Errata: actually the issue persist even after disabling the hardware acceleration when changing tabs; some are affected, others are not (using the same website to check).
I'm having the same issue. I ported all settings/addons to regular main release Firefox and the font was being rendered properly there. It's definitely an issue that's only popped up on the Aurora/Nightly branches thus far.
Update: Upon reverting to Windows 7 from Windows 10 the font rendering issue seems to be gone. I have a feeling this issue has something to do with ClearType and it's interaction with changes on Aurora and Nightly.
I cannot repro using Windows 7 64 bit. User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0 Build ID: 20150820142145
Status: UNCONFIRMED → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → WORKSFORME
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