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traxium
Menu and tab bar turn completely black
Solution: I troubleshot this down to disabling hardware acceleration in FF 42 on laptop.
Background: 2 Win7 64bit PCs running identical FF & Profiles (Profile copy via FEBE). Desktop PC with ATI graphics card works great. Laptop PC with Intel HD 4000 turns FF menu bar and Tab Tree (TT) bar completely black after 1 second when TT is enabled. Disabling TT immediately return display of menu bar with horizontal tabs. This issue does not impact menu or TT bar functionality only display.
Web research seemed to indicate some conflict between the intel driver (I updated to latest version) and FF hardware acceleration but prior to using Tab Tree (I was using Tree Style Tab) I had not experienced this issue with FF, extensions or any other program.
Thanks. There was another report https://github.com/traxium/tabtree/issues/12#issuecomment-140667852 concerning Intel HD and the same problem. Now we can presume that the problem with Intel HD graphics drivers and this add-on confirmed. Recently (in 1.3.6) I added 0.8 second delay for displaying the tab tree (and something else) hoping that it'll help. But as it seems all that was in vain.
Thanks and sorry I missed the other posting. Time permitting I'll play around with it (I'm not a coder). It's definitely a bigger issue than this one extension.
Try the following: Type about:config in the adress bar set gfx.direct2d.use1_1 to false by double clicking Maybe this will fix the issue. I experienced graphical artifacts myself with Intel 2000 Graphics in the earlier versions of Firefox, and setting gfx.direct2d.use1_1 to false helped to get rid of them.
I can confirm. Linux, Intel graphics, Firefox 42: Leaving hardware acceleration enabled causes Tabtree to go all-black.
I'm running Firefox 51.0.1 under Windows 10 with an Intel HD 4000 GPU. I found that disabling Direct2D sufficed as a workaround. This is preferable to disabling graphical acceleration outright because it allows for the continued use of Direct3D 11 as a compositor, rather than downgrading to Skia.
