User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0 (Beta/Release) Build ID: 20131121030201 Steps to reproduce: Load any page. Touch and hold (long tap) on any text/link on this page. Actual results: Nothing. Expected results: On text - the text should be highlighted, and options to copy/etc. should be shown. On links - the context menu to open links i a new tab/etc. should be shown.

This started couple of days ago, the current version I have experienced this is 28.0a1 2013-11-27.

Which phone are you running and which version of Android? Bug 768667 implemented a custom action-bar for text-selection actions which is in-replacement of a context-menu.

I am running Android 4.3 on SGS4 (i9500). I am aware of action-bar regarding the text actions - this is what I meant by saying "options (...) should be shown".

Stupid me... It was a Long-Tap Search extension. Sorry for wasting your time :)

https://addons.mozilla.org/en-US/android/addon/long-tap-search/?src=ss That is good to know. Thanks for reporting this.