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Why is MATLAB Help browser showing unformatted text on Linux (R2018b)

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In R2018b, when I bring up the Help browser, e.g. using
doc classdef
it brings up a window, but it's just unformatted text, and no graphics.
I'm on Ubuntu 18.04. It is fine on R2018a.


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Jan on 16 Oct 2018
Did you ask the technical support team of MathWorks already?

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Accepted Answer

Ken Morrison
Ken Morrison on 13 Nov 2018
Edited: Ken Morrison on 13 Nov 2018
I was able to fix this problem on Ubuntu 18.04 LTS and Matlab R2018b. The following command, run from the system terminal, showed that the system was missing libgconf-2-4.
ldd ~/.matlab/R2018b/HtmlPanel/glnxa64/chromium/jxbrowser-chromium | grep -i found
Output shows missing shared library. => not found
Solution: Install libgconf-2-4 AND restart Matlab
sudo apt install libgconf-2-4
Thanks to Alexander Maye for pointing me at jxbrowser-chromium.


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Priodyuti Pradhan
Priodyuti Pradhan on 4 Dec 2019
Thanks a lot! The above answer solve the problem on Ubuntu 18.04 LTS with Matlab 2019a.
zr zug
zr zug on 19 May 2020
After I install matlab R2020a on Ubuntu 18.04 LTS, the help document can not display normally. The possible reason might be similar to this question, because I find that the jxbrowser-chromium dir disappears. The dir exsits in neither ~/.matlab/R2020a/HtmlPanel/ or .../Polyspace/R2020a/sys. I only find the dir in .../Polyspace/R2020a/java/jarext. I wonder whether I can directly copy the jxbrower-chromium folder to the path .../Polyspace/R2020a/sys or is there any other solutions.
Gregory Kriehn
Gregory Kriehn on 14 Jun 2020
Installing Matlab R2020a on Fedora 32 produces silimilar problems. There are no missing libraries when running the command, however.

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More Answers (4)

Alexander Maye
Alexander Maye on 7 Nov 2018
Edited: Alexander Maye on 7 Nov 2018
Just had a conversion with Mathwork's support, and this helped me to solve the problem in openSUSE Leap 15 in the following way:
1) make ~/.matlab/R2018b/HtmlPanel/glnxa64/chromium/jxbrowser-chromium executable
2) install
On openSUSE, this library is provided by the package openssl1_0_0, and after installation, the help browser runs fine.


Richard Stephens
Richard Stephens on 9 Nov 2018
Thanks for taking the trouble to answer, unfortunately, these commands did not work on my system (Ubuntu 18.04).
1) This command returned:
make: Nothing to be done for 'jxbrowser-chromium'.
make: *** No rule to make target 'executable'. Stop.
2) On Ubuntu I used:
sudo apt-get install libssl1.0.0
which successfully installed the library, but it made no difference to the help browser in Matlab.
Alexander Maye
Alexander Maye on 12 Nov 2018
Sorry for the confusion. To make something executable, enter chmod +x something.

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Bernard Llanos
Bernard Llanos on 20 Nov 2018
I had the same symptoms on Ubuntu 18.04 (as well as the error described here), with R2018b, but for a slightly different problem:
ldd $MATLAB_INSTALLATION_FOLDER/R2018b/sys/jxbrowser-chromium/glnxa64/chromium/jxbrowser-chromium | grep -i found
The output shows that I had a broken link: => not found
was a symbolic link to
whereas I had
I replaced the symbolic link with a link to the generic link
which resolved the issues.


Abhigna Kurella
Abhigna Kurella on 24 Jan 2019
Thank you. I cannot find a folder called chromium in glnxa64. I have only two folders lib and xulrunner.
Is something missing from mine?
I find that, I have installed .Can you please tell how to replace the symbolic link with a generic link.
Bernard Llanos
Bernard Llanos on 24 Jan 2019
You are probably looking in
instead of
By generic link, I meant a symbolic link to a file that does not specify the version number so precisely (20 instead of 20.2.1 or 20.0.5)
If you run
ls -l /lib/x86_64-linux-gnu/*
you should see that there are two items listed, one which is, and which is actually a symbolic link to the other, which is a file called If you create a symbolic link to, the link will be valid even when is replaced with a newer version, because will have been updated to point to the newer version.
Shirshendhu Panday 16BEE0129
Iam getting same problem on Windows after the update but I can't search anything in the help window and online documentation is also not working.

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Alexander Krings
Alexander Krings on 29 Mar 2019
I was able to solve this problem for R2019a on a CENTOS7 (64bit/only) system.
In the first step i located the jxbrowser-chromium (MATLAB/R2019a/sys/jxbrowser-chromium/glnxa64/chromium)
I opened a terminal and entered>
ldd jxbrowser-chromium | grep -i found
which gave me => not found
Luckily I had the idea to search if the file was already on my system. I do not want to risk downloading a library that does cryptography "obviously" .. somewhere on the internet.
find . | grep so.1.0.0
showed me
that the missing file came already with the installation. I copied the file and send it to
and also set
in Matlab Command Window. Restart Matlab and it works. But, loading the pages is still pretty slow. This could be improved !


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yunhui zhou
yunhui zhou on 23 Jun 2019
Same problem for Matlab R2018b on Kubuntu 19.04. In my case, running:
ldd ~/.matlab/R2018b/HtmlPanel/glnxa64/chromium/jxbrowser-chromium | grep -i found
showed that I was missing and I solved the problem by running:
sudo apt install libgconf-2-4
cp /usr/local/MATLAB/R2018b/bin/glnxa64/ ~/.matlab/R2018b/HtmlPanel/glnxa64/chromium/
However, even after this rendering in the help broswer was slow, though it can correctly format the page.


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