Category Archives: Ubuntu

Add a search engine to Ubuntu Touch browser

You can’t add search engines with the browser GUI, perhaps because Ubuntu Touch is a Work-In-Progress and it’s still early days. Adding search engines to browsers still has patchy support from major browsers, even though the OpenSearch standard is donkey’s years old. I installed Ubuntu Touch on my Nexus 4 after experiencing the “Sleep Of Death” too many times and wanted to use my Firtl search proxy in Touch’s browser.

I located the configuration files (they’re OpenSearch XML description documents, which is handy!) by using grep -r to search for one of the existing search engine names. The search engine description documents are located (on my phone) in


The / filesystem appears to be mounted read-only and must be remounted read-write to make changes. I did this with the command

mount -o remount,rw /

Copy your search engine’s OpenSearch description document into this directory and next time you attempt to set Ubuntu Touch’s web browser’s search engine, you should see the new search engine in the list. Don’t forget to remount / read-only.

Happy Searching!

HMRC Companies House Return Service PDF Filing on Ubuntu (64 bit)

Ubuntu includes a pretty good, basic PDF reader called “Document Viewer / evince”. The Return Service from Companies House uses a PDF document which needs the support offered by Adobe’s Reader. Installing Adobe Reader on the latest (14.04 LTS at the time of writing) 64-bit Ubuntu is not quite as simple as pointing and clicking.

Here are the steps I needed:

Get and install adobe reader by following the instructions from which follow the heading “For Ubuntu 14.04 (and 13.10), 32 or 64-bit”

I’m guessing that installs a 32-bit version of Adobe Reader which will start up when run from the command line but will complain about some missing modules which can be installed by

sudo apt-get install libcanberra-gtk-module:i386 libidn11:i386

and a missing theme fixed also by installing

sudo apt-get install gtk2-engines-murrine

One more complaint fixed by installing

sudo apt-get install unity-gtk2-module:i386

… left a complaint about “overlay-scrollbars” as the only outstanding error message at the command line. It’s not obvious what installing these extra modules improved in the PDF document.

The Companies House Return Service PDF opens up in evince (the default PDF viewer) with a message that says the PDF document won’t work in all viewers and to ‘Please Wait’. The wait never ends and it must be assumed that evince doesn’t support all the features the Companies House PDF requires. Opening the same file in Adobe Reader shows (for me) a blank screen for 20 seconds or so, before the introduction page appears. Navigation through the Return is by ‘Back’ and ‘Next’ buttons at the foot of each page.

One further problem is that HMRC appear to be using a self-signed certificate which you have to explicitly ‘trust’ in Adobe Reader. The instructions for this are contained in a PDF. Direct links to the PDF are all over the Web, but the person who would follow instructions to accept a self-signed certificate from a directly-linked PDF document does not deserve security.

Here’s my best attempt at a link to the document that explains how to trust the self-signed Companies House security certificate. Satisfy yourself that you’re looking at the Companies House website before downloading and following those instructions! The instructions are in the document linked as “a guide on changing settings in Adobe Reader”.

After trusting Edward Tucker’s certificate, you should be ready to start filing. Good luck!

Wouldn’t this be so much easier if they’d just made a web-based Return Filing Service?