Thunderbird/Firefox icon blurry in unity launcher and in alt+tab interface

Bug #1531345 reported by nixer on 2016-01-06
This bug affects 6 people
Affects Status Importance Assigned to Milestone
unity (Ubuntu)

Bug Description


Running Ubuntu 15.10 x64. Installed the day of writing this.

When firefox/thunderbird was initially installed, the icons were crisp and clean, but at some point throughout the day, not sure if after a restart or not, the icons for firefox/thunderbird became blurry when viewed in the unity launcher, and in the alt+tab interface.

Changing the scale of the unity launcher icons did not appear to have an effect.

Both are the latest versions installed via apt-get.

I notice when I search for files with "firefox" or "thunderbird" in them in /usr/share/icons, I only get results for firefox in the high constrast them. If I search for an application I know has working icons, like terminator, I get lots of results.

How can this be fixed?

nixer (nixer) on 2016-01-06
description: updated
description: updated
nixer (nixer) on 2016-01-06
description: updated
summary: - Firefox icon blurry in unity launcher and in alt+tab interface
+ Thunderbird/Firefox icon blurry in unity launcher and in alt+tab
+ interface
Sebastien Bacher (seb128) wrote :

Thank you for your bug report. Could you take a screenshot of the issue? Do you get the same bug in a guest session?

Changed in unity (Ubuntu):
importance: Undecided → High
status: New → Incomplete
nixer (nixer) wrote :

Screenshot attached.

nixer (nixer) wrote :

As you can see from the screenshot, the icons in both the unity launcher and the alt+tab interface are blurry/low quality.

nixer (nixer) wrote :

The issue does not persist in a guest session.

Anything I can try in the mean time for a repair?

nixer (nixer) wrote :


I have also tried installing 15.04 64 bit again, and this problem persists. The icons were fine for the first little while, and then they became blurry. I don't know for sure, but I want to say it's after a software update was run.

nixer (nixer) wrote :


Evince is now affected by the same problem.

nixer (nixer) wrote :

A note:

It seems that thunderbird and firefox seem to have a single pixmap icon file, rather than a series of images of different sizes that are placed in /usr/share/icons.

Is this a hint as to the nature of the issue?

nixer (nixer) wrote :


Evince no longer seems to be affected. Firefox and Thunderbird still affected though.

Launchpad Janitor (janitor) wrote :

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

Changed in unity (Ubuntu):
status: Incomplete → Expired
Danis Fermi (danisfermijohn) wrote :

Re-activate thread? I'm also facing the same issue.

hemant (hemantcompiler) wrote :

I am also facing the same Issue, somebody please fix it.

Danis Fermi (danisfermijohn) wrote :

Commenting here to re-activate the thread.

aleksandar (nolorwolf) wrote :

Still exists, Ubuntu 16.04, both Firefox and Thunderbird

ockels (ockels) wrote :

Facing this issue on 14.04 LTS with latest updates.

Changed in unity (Ubuntu):
status: Expired → Confirmed
ockels (ockels) wrote :

Solved in my case -> Firetray addon for thunderbird caused the blurry icon.

After loading thunderbird with firetray addon both firefox & thunderbird icons went blurry. After closing thunderbird they went normal. Disabling the addon fixed my issue.

Mehdi EL KRARI (mehdielk) wrote :

Thanks ockels!

Disabling FireTray addon solved this issue. It was a little bit different for me: only the Firefox icon become blurred after opening Thunderbird.
But I think I'll keep this addon enabled since it doesn't affect usability and features of these Mozilla products.
It should be forwarded to FireTray developers to be fixed.
Thanks again :)

Same problem here.

To be more precise, the problem occurs when and only when the Thunderbird-indicator in the panel is visible!
(in my case it's Thunderbird because I too only use the addon in Thunderbird)

Fix would be greatly appreciated

Gianluca Pindinelli (pindi) wrote :

A workround is:
- go to folder .thunderbird/YOURTHUNDERBIRDPROFILE.default/extensions/{YOUR_UUID_FIRETRAY_PROFILE}/chrome/skin/icons/linux/hicolor/22x22/apps
- delete the png images of installed mozilla products
- restart Thunderbird

Verified on ubuntu 16.04 LTS + Thunderbird 52.1.1 (64 bit) + FireTray 0.6.1 .

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