Under certain circumstances (ie, when there are third party extensions installed in /usr/share/mozilla/extensions), our bundled extensions (globalmenu + ubufox) and language packs are disabled automatically on upgrade to Firefox 8
Under certain circumstances (ie, when there are third party extensions installed in /usr/share/ mozilla/ extensions) , our bundled extensions (globalmenu + ubufox) and language packs are disabled automatically on upgrade to Firefox 8