Bugzilla

[Affected versions]
66.0a1 (2018-01-09)

[Affected platforms]
Windows 7/10 x64
Windows 8 x32
Mac OS 10.13

[Steps to reproduce]
1. Launch latest Firefox Nightly
2. Go to https://vimeo.com/join#_=_
3. Hover over "Features" or "Watch" to reveal the drop-down menus
4. Hover over slightly faster on all the options from the drop-down menus

[Expected result]
The options should be highlighted (with a barely visible white color) accordingly. 

[Actual result]
The highlights for the options are misplaced and are displayed with different color or opacity (depending on the image from the background of the site).

[Regression-Range]
Last good revision: 2d8ce84e0107c99974201c1b67864786b22f3ff8
First bad revision: 94ecc40729d0302ee3953dbab0d280d4a6b174c4
Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=2d8ce84e0107c
99974201c1b67864786b22f3ff8&tochange=94ecc40729d0302ee3953dbab0d280d4a6b174c4

Hiroyuki Ikezoe, can your please take a look at this?

[Affected versions]
66.0a1 (2018-01-09)

[Affected platforms]
Windows 7/10 x64
Windows 8 x32
Mac OS 10.13

[Steps to reproduce]
1. Launch latest Firefox Nightly
2. Go to https://vimeo.com/join#_=_
3. Hover over "Features" or "Watch" to reveal the drop-down menus
4. Hover over slightly faster on all the options from the drop-down menus

[Expected result]
The options should be highlighted (with a barely visible white color) accordingly. 

[Actual result]
The highlights for the options are misplaced and are displayed with different color or opacity (depending on the image from the background of the site).

[Regression-Range]
Last good revision: 2d8ce84e0107c99974201c1b67864786b22f3ff8
First bad revision: 94ecc40729d0302ee3953dbab0d280d4a6b174c4
Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=2d8ce84e0107c99974201c1b67864786b22f3ff8&tochange=94ecc40729d0302ee3953dbab0d280d4a6b174c4

Hiroyuki Ikezoe, can you please take a look at this?