the icon is not uhd optimized Rated 4 out of 5 stars

This is a good add-on and I like it but the main icon and the icons inside settings is not in a good quality for Uhd displays.

Not supported for .gifv files and media Rated 4 out of 5 stars

Other than that, love it! The blacklist option also has wildcards enabled, which really helps when going into the comments section with RES enabled.

Facebook Rated 3 out of 5 stars

nothing has changed, the same as it was.

This user has 8 previous reviews of this add-on.

Broken on Facebook Rated 1 out of 5 stars

I am extremely annoyed that this is broken on Facebook. It's not working at all on any of the profile pictures on hovercards. I am also really annoyed that the dev hasn't been active since June.

This user has 2 previous reviews of this add-on.

Thanks for the addon Rated 5 out of 5 stars

A support for .gifv (usually an .mp4 file without audio) would be appreciated.

e10s support ? Rated 4 out of 5 stars

Any plans for e10s support? It is a so great add-on.

imgur - GIFV Rated 5 out of 5 stars

Can you please add support for GIFV files, beside gifycat, this is the 2nd most used extension on REDDIT.

Love it! Convenient except when using chrome where I have to break the habit you get into with this on Firefox Rated 5 out of 5 stars

Exactly what I was looking for and couldn't believe it actually existed when I searched thumbnail in add-ons.
Awesome on YouTube

help Rated 3 out of 5 stars

dont work on any site right now, any clue?

Check your Thumbnail Zoom Plus preferences

Make sure the overall "Enable" checkbox is turned on in the Thumbnail Zoom Plus preferences, and that all the checkboxes are on in the "Site Checkboxes" tab.

Love it but it slows my pages down too much Rated 3 out of 5 stars

Every page hangs and takes forever. When I disable this add-on, everything runs fast and crisp. This add-on needs to be updated for the latest Firefox.

buggy Rated 3 out of 5 stars

doesn't work with half of links, e.g. doesn't load imgur .gifv previews etc. sometimes decides to load random website background instead. loads when clicking album arrows to navigate galleries (e.g. embedded imgur gallery on reddit) and overlaps the arrows.

Eats RAM for breakfast Rated 3 out of 5 stars

I love this add-on, but it causes my FF to crash rather quickly as it uses A LOT of memory..

On Linux broken Rated 2 out of 5 stars

On Windows 10 worked flawlessly. After migrating to Kubuntu there are so many bugs - sometimes it enters a mode when window never opens (just Firefox flashes in task bar) other times it works for some smaller images, but breaks for larger - it shows them on wrong screen (TV actually which is quite far away so unusable for me).

Linux is hard...

Sorry, it works pretty well on Red Hat Linux, the one I test on. But there are many flavors of Linux with different window managers, some of which don't behave similarly enough to Windows and Mac for the add-on to work properly.

No longer working with imgur albums Rated 3 out of 5 stars

see title

Fixed in TZP 4.1beta2

Fixed in TZP 4.1beta2.

Please support for Google Chrome! Rated 5 out of 5 stars

Please support for Google Chrome!
This is a very nice extension!
Only I have I use Chrome, please support Chrome!

This user has 10 previous reviews of this add-on.

Thanks for your review. Unfortunately supporting Chrome would require a complete re-write, which is not possible.

Please fix your wonderfull add on my friend. Rated 3 out of 5 stars

Thank you. :)

Lacks Key Feature For Tumblr Archives Rated 4 out of 5 stars

Missing a feature for Tumblr archives, which allows one to scroll through multiple images attached to one image.
This would be an excellent addition to this add-on.

No more working in Facebook and in other places (FF48) Rated 5 out of 5 stars

Please, update it! It is wonderful add-on!

I can't belive on how many sites this thing works Rated 5 out of 5 stars

I have seen nothing even remotely close to it,
it is that good,chrome users sure never saw something this good,because they dont have it,i cant imagine my browser missing this addon.
From my experience i feel it handles like 60%~80% of the internet,while other similar addons i wonder what they handle.

No longer works with Instagram Rated 2 out of 5 stars

looks like the creator doesn't care/is not willing to fix this problem.