This is what I found working for me:
You will need to access the "config editor" in Thunderbird itself.
Open Thunderbird. In 24.6.0, the menu can be accessed on the right hand side of the top menu bar (next to the search bar and is represented by three horizontal lines).
Click Edit > then click Preferences >,
a new window will open. You will need to select the Advanced tab, at the bottom of that tab Open the Config Editor.
Then, search for both network.protocol-handler.warn-external.http and
network.protocol-handler.warn-external.https.
These two are most likely to have a current value of false. Change the value to true (do this by simply right clicking on them) and the next time you try to open a link from some e-mail it'll ask you which browser to use. Chromium isn't likely to be shown in the list of choices, so use the navigate button. You can find Chromium at /usr/bin/chromium-browser.
If using google chrome as your browser of choice you may want to make it /usr/bin/google-chrome or /usr/bin/google-chrome-stable
If Thunderbird doesn't ask you which browser to use when you click on a link after doing this, you can try deleting mimeTypes.rdf file in your profile folder to reset it. The profile folder is typically found as ~/.thunderbird/xxxxxxxx.default/
Original text by Htbaa
Try to make it happen, then post output of free -m.
Also, please post details on what make and model of hard drive you're using, and output of df -h.
For reference, here is me looking at the %memory used by the biggest processes currently running on my system:
me@banshee:~$ ps wwaux | awk '{print $4 " " $11};' | sort -rn | head -n 10
8.1 rhythmbox
7.1 /opt/google/chrome/chrome
3.7 /opt/google/chrome/chrome
3.3 /opt/google/chrome/chrome
2.6 /opt/google/chrome/chrome
2.5 /opt/google/chrome/chrome
2.3 /usr/bin/X
2.3 /opt/google/chrome/chrome
1.9 /opt/google/chrome/chrome
1.9 compiz
Can you run the same command on your system, please, and let's see what your biggest processes are?
For reference, my system has 16G of RAM, and each of those chrome processes you see is therefore eating something along the lines of 300MB-600MB of RAM. So, yeah, they definitely do add up.
For further reference: those are my TOP memory-hungry Chrome processes; I actually have 72 current tabs open right now and they're eating about 0.9% of my RAM (about 90MB-ish) apiece on average - the actual range is from about 10MB on the low end to about 600MB on the high end. I haven't tried to check to see how much omgubuntu eats specifically.
A bit MORE reference: I set up a clean VM and installed chromium-browser; opening 12 tabs to http://omgubuntu.co.uk/ resulted in 1.3G used / 718M free (646M used / 1.3G free -/+ buffers/cache). So, basically, either something OTHER than Chromium is eating most of your RAM, or you have extensions installed in Chromium that aren't very memory-efficient and are significantly bloating it per process... if I had to guess, I'd say probably the latter. What extensions are you running?
Best Answer
If you installed the browser from the Software Center, you need to know there are two possibilities:
The one named "Chromium" is what is known as a snap version and you can read more about snaps here.
Notice the source is the Snap Store and the download size is 141.6 MB.
The one listed as "Chromium Web Browser" is the regular version, like most of your other software, from the repositories.
The source is the universe repository and its size is only 57 MB.
(By convention, if both a snap and a regular version are available for the same application, the snap version is listed above the regular version. See here.)
Your browser profile in the case of the second version, the regular version, will be in
~/.config/chromiumas you pointed out in your question.With the snap version, things are different. Snaps you install as a user will be in your home folder in the
snapsubfolder.To find your profile folder for the snap version, point your file manager or terminal to
~/snap/chromium/471/.config/chromium.Given the nature of snaps, you may find your experience a bit restricted in interacting with the rest of your system.
If you have indeed installed the snap version and wish to remove it, make sure it isn't running, open a terminal and execute
snap remove chromium. You'll get an interface asking you for your password. Provide it and press Enter. Done. Keep in mind that everything in~/snap/chromium, including your profile data, will be removed!