[PLUG] Odd display of .pdf in Firefox on Ubuntu 14.04

[Dick Steffens]

On 11/15/2015 09:35 PM, John Jason Jordan wrote:
> On Sun, 15 Nov 2015 20:58:25 -0800
> Dick Steffens <dick at dicksteffens.com> dijo:
>
>> On 11/15/2015 08:28 PM, King Beowulf wrote:
>>> What are the Firefox versions? That data is more useful that what
>>> distro.  Perhaps you just need to upgrade or reinstall Firefox on
>>> your 14.04 box.
>> Ubuntu 14.04 machine:
>> Firefox 42.0
>> Midori 0.4.3
>>
>> Ubuntu 12.04 machine:
>> Firefox 41.0.1
>>
>> Linux Mint 13 Maya machine:
>> Firefox 40.0.3
>>
>> The version of Firefox exhibiting the problem is the newest.
> In my experience the newest version of Firefox is not always the best.
>
> More importantly, check what add-ons, extensions and other what-nots
> you have installed in your various Firefoxes.

I was wondering what Firefox uses to display a .pdf. Looking through the 
various add-ons and extensions, it's not obvious.

-- 
Regards,

Dick Steffens