Here's how I successfully was able to browse finally again:
Remove the following packages:
1) libwebkit2gtk-4.0-37-gtk2 [2.21.2-1 (experimental, now)]
Downgrade the following packages:
2) libwebkit2gtk-4.0-37 [2.21.2-1 (experimental, now) -> 2.20.2-1+b1
(unstable)]
