Rated 5 out of 5 stars

New development versions of this add-on can be downloaded from here: https://forum.mozilla-russia.org/viewtopic.php?id=13930 (skip to the last page)

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

Rated 5 out of 5 stars

Works perfectly on Seamonkey 2.31, once installed.
To install it, I bumped the "maxVersion" for Seamonkey in its install.rdf to "2.*"; no other changes needed.

Rated 5 out of 5 stars

Thank god it still works on FX20. Just realized how bad I need something that tells me how big a file is before I start download. Found this with notice that it is no longer being developed. First time I've ever seen the "+ (obsolete)" notification for an add-on ever. Not. Works fine. I tested it on some links at archive.org
https://ia600401.us.archive.org/16/items/newenglishdictio102murruoft/
and it's fine. Sometimes I have to click on the 'get file size button' but then it shows me what I need to know!!! Hooray for the developer wherever he is...

Rated 5 out of 5 stars

No, this addon is not obsolete, because Element Properties won't show any anything interesting anymore, e.g. file size.

Rated 5 out of 5 stars

I use this add-on I don't know how many times a day, especially with downloads. Worth being updated, at least in version compatibility announced.

This user has a previous review of this add-on.

Rated 4 out of 5 stars

Can we have an option to show in Kb / Mb instead of KiB and MiB? I'm used to the American style prefixes and such,

Rated 5 out of 5 stars

Excellent, useful, simple

Rated 5 out of 5 stars

One of the Best Addons!

Rated 5 out of 5 stars

Great job mate!

Rated 5 out of 5 stars

Super!Функции аддона в натив браузера!
В FF 4.010pre работает отлично!

This review is for a previous version of the add-on (1.4.0). 

Rated 5 out of 5 stars

супер

This review is for a previous version of the add-on (1.4.0).