Install the firefox latest version 25 and give a try

Download from official website Google Play

• https://play.google.com/store/apps/details?id=org.mozilla.firefox

Firefox Android Addons

• https://addons.mozilla.org/android

Thanks for your prompt response but I have version 25. The problem is on the add ons page; I get the message "You need Firefox to install Add ons lLearn more and the Add to Firefox link is greyed out! more". And d

May the Addon is not compatible with the latest version of firefox

I think you get message correctly but the mobile web page for replying doesn't support android editing properly :-(

Could be - I'll experiment. Thanks.

No. I get same message and greyed out dl link even for add ons I have already installed.

Which addons are you trying for ?

Provide the addon name or url

Tap translate.

Are you talking about this addon?

• https://addons.mozilla.org/en-US/android/addon/tap-translate/

It works fine in Samsung S2

Reinstall your firefox and give a try

Are you using Phony or another extension to modify your user agent? The value of your user agent can be checked by typing about:support in the address bar.

OK, thanks all. I just tried uninstalling and then reinstalling ver 25. I did not reload my previous data using Titanium Backup. When I tried this with loading data from TB I couldn't download Add ons. Trouble is I now have to manually add all the Add ons I had (Phony, Network Preferences, Self destructing cookies, ABP, and Quit now plus Google, Twitter and Wikipedia search engines)!!

Maybe problem was Network Preferences as this is Experimental (but it did work before). How to use a proxy now?