- do not build with --enable-stdcxx-compat
(this starts to fail build on various toolchain combinations
and is not required for openSUSE builds in general

- update to Firefox 41.0.1
* Fix a startup crash related to Yandex toolbar and Adblock Plus
(bmo#1209124)
* Fix potential hangs with Flash plugins (bmo#1185639)
* Fix a regression in the bookmark creation (bmo#1206376)
* Fix a startup crash with some Intel Media Accelerator 3150
graphic cards (bmo#1207665)
* Fix a graphic crash, occurring occasionally on Facebook (bmo#1178601)