Nothing happens when I click on Site Settings following right-click in web page. No toolbar icon, no context menu, no nothing. OS X 10.14 (Mojave), Firefox Quantum 68.0.

Causes tremendous resource usage, cooling system spinning up to crazy levels when enabled.
Likely an embedded cryptocurrency miner. Be careful.

Thanks for taking care of old NoSquint

とても便利に愛用してきた。ところが2019年03月から、常に誤動作してばかりで、まったく使い物にならなくなった。どうやらFirefoxの最新バージョンでは誤動作の嵐が起きる仕様のようだ。

Unexpectedly stopped to work and also slows down FF in some tabs (FF reports and suggests to block it).

Solve my problem.

Doesn't work. At all.

Not worth installing. After installing this, all webpages loaded at 120% font and I had to manually set each one back to 100%. Needless to say, this got old real quick. This addon needs work.

It's not working at all

The main problem with this addon is it seems to be written for Chrome, not Firefox. While it works with default settings, it seems to have difficulty forgetting previous settings. It could use a "forget all" button. Once the zoom is changed to a different value or percentage, it still remembers the old value. Using Quantum 64-bit.

Sometimes it saves the settings, sometimes it won't work altogether and stays there like a dummy. When I totally forget it exists, it starts working again, saves stuff but after a while it shows its true colors again ;( ; v. dissappointing.
very useful addon if it works flawlessly and I couldn't find any alternative anywhere.
No response from developer too

Does not save settings. This add-on has 1 job to do, but it doesn't do it.

Forces all pages to be zoomed in 120%, despite changing it to 110% in the settings. Literally does not work.

Dosen't work. :-(

Can only support you by rate-up.

It doesn't work