Please make available for Firefox 57. I know it's not your fault that this extension doesn't work anymore and that Mozilla's latest Firefox makes it incompatible. I've been using this Add on for many years and, like a lot of other folks with aging eyesights badly need it. Shame on Mozilla for not only making you incompatible but for also giving the middle finger to us older users by making their menu items unreadably small.

Great extension, I hope it not drop. If someone will help, there is a small means of partial replacement to this addon.
1. Place/Create/Add next file "userChrome.css" into "chrome" subfolder in your profile, e.g. C:\Users\usename\Appdata\Roaming\Mozilla\Firefox\Profiles\cdar87xx.default\chrome;
2. Fill userChrome.css next content, for example:
* {font-size: 10pt !important; font-family: "Roboto" !important;}
3. It means that you have this font already installed. You can set your own font-size and font-family values, ofcourse;
4. Restart FF.
Now it looks closely than I has with TFSC.

Can not change the font size.

It was hard to find the button under FF57, and then when I found it I discovered that this addon no longer does what it used to do, which is make Firefox usable for me. Very disappionted. Not your fault, I know. The only workaround I found was given here: https://support.mozilla.org/en-US/questions/1184537, and involves changing about:config values.

I can't tell you how much I hate you for changing my Firefox v51 back to tiny font just because you are having trouble with v57. What made you do such a shitty thing?

Can't make it work anymore!!!!!!

LOVED this tool before the 57 update. Everything is ssssoooooo tiny now. Please update so I can see again!

My reviews are not being posted - am I blocked?

The FirrFox quantum default appearance is horrible, okay simplicity but leave the black !! Life is colored.

Do not work for me! Please update for all functions.

It is not working for me

Until this stuff is fixed for newer Firefox use this hack to get font size bigger:
create userChrome.css in the profiles /chrome folder and enter

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* set default namespace to XUL */

menubar, menubutton, menulist, menu, menuitem, textbox,
toolbar, .tab-text, tree, tooltip, sidebarheader, statusbar {
font-size: 20px !important; }

THE NEW THEME AND FONT SIZE CHANGER IS TERRIBLE, I WANT THE OLD ONE BACK. IT IS CONFUSING AND THE
FONT CHANGER DOESN'T WORK. I USED TO BE ABLE TO HOVER OVER THE THEMES TO CHECK THEM OUT AND
THAT IS GONE AS WELL. WHY DO YOU HAVE TO KEEP CHANGING THINGS? YOU SHOULD HAVE LEFT WELL ENOUGH
ALONE. I WILL PROBABLY DUMP FIREFOX BECAUSE OF THIS.

Because of the limitations in customising Firefox 57 I will use Waterfox until it ceases to update. Why remove the functionality of this addon with the latest update? Please restore all functionality so that people who are happy using variations of Firefox which allow the old extensions can continue to enjoy your great addon, thank you :)

Wer kann mal auf deutsch erklären, wie man die sache wieder hinbekommt...habe auf hinzufügen geklickt, komme abertrotzdem nicht weiter....Danke!


Das war immer das Beste beim Mozilla Firefox...nun nicht mehr zu gebrauchen da ich die Schrift nicht mehr vergrößern kann...
Also wird die ganze Sache gelöscht....schade, oder wie bekomme ich die Sache wieder vergrößer?
Es handelt sich natürlich um Lesezeichen-Leiste....

Why tells us about something you no longer make available? It's stupid and irritating. Since your upgrade today the font size on my Bookmarks has become tiny. Why did you do this?

How the hell can I/we change the font size now on Bookmarks? Change to Chrome or Thunderbird?

It's the EASIEST to use, even for those not so Computer savvy, such as myself! Takes you through all the areas you would like to change!!!

Mit der Version 57 von FireFox hat Mozilla definitiv die rote Linie überschritten. Der "freie" Browser schreibt mir vor, was ich an Addons installieren darf? Geht gar nicht.

Nur dank dem Addon "Theme and Font Size Changer" konnte man FireFox überhaupt benutzen ohne Augenkrebs zu bekommen. Nun wird das verunmöglicht.

Das heisst für mich klar: Ich wechsle jetzt zu Google Chrome. Schade um die Idee des freien Browsers Mozilla!

Please Please bring this one to Firefox 57
My old eyes would be forever thanfull

If your add-on is no longer working, you'll need to downgrade to the previous version:
1- Remove (uninstall) the Theme Font& Size Changer addon
2- Go to this page and download/install version 56.0
https://addons.mozilla.org/en-US/firefox/addon/theme-font-size-changer/versions/
3- To prevent the add-on from updating itself to the latest version, you'll need to disable it (note: this will also disable auto-updates for all other add-ons). Follow these steps here: https://blog.mozilla.org/addons/how-to-turn-off-add-on-updates/

It is not working. The type is no longer larger & I do n ot see a way to make it happen.