Huzzah! Rated 5 out of 5 stars

Yes, it's working again in Firefox (51.0.1) and Thunderbird (45.7.0) on Linux!
My squinting eyes thank you...

Now works great on linux distos Rated 5 out of 5 stars

Thank you for fixing the problem with your addon not showing the icon in the icon menu and the tools menu for linux os. I’m using kubuntu and ubuntu and it now works great. I can now make those small menu fonts as large as I want them. No more eye strain. It also works great for thunderbird. It should work for all linux distos. I will recommend your addon to anyone I know that is having problems with the small fonts on firefox and thunderbird. Again, thank you for listening to my complaint late last year and fixing the problem.

This review is for a previous version of the add-on (50.3). 

It Works Rated 5 out of 5 stars

This extension Works. You do only need to change back to default theme and restart SeaMonkey completely.

This review is for a previous version of the add-on (50.3). 

Solved my problem Rated 5 out of 5 stars

Teeny tiny fonts in Thunderbird on my Mac Air made reading mail nearly impossible. This app has solved that problem completely. I do have to be careful about which version is installed whenever I update Thunderbird, but it is totally worth the effort. I would not be able to use Thunderbird at all if not for this add-on. A thousand thanks!!!

This review is for a previous version of the add-on (50.0). 

Rated 5 out of 5 stars

Thank you very much for this software. This addon is absolutely brilliant. Good luck!

This review is for a previous version of the add-on (49.4). 

Me ha sorprendido Rated 5 out of 5 stars

Poder cambiar todas las fuentes y los colores de fondo de los menús de Firefox es realmente curioso, le da otro aire más personalizado al navegador. +10. FF 48.0.2

This review is for a previous version of the add-on (48.5). 

Let Me Add My Thanks As Well Rated 5 out of 5 stars

Thank you very much for fixing this so quickly. I can read my tabs and bookmark bar again. TF&SC is absolutely essential for me.

This review is for a previous version of the add-on (48.5).  This user has a previous review of this add-on.

Very good guys Rated 5 out of 5 stars

They fixed it. For us older people this is the number 1 add-on. Can't do without this one.
Thanks guys for fixing it.

This review is for a previous version of the add-on (48.5). 

Yes... thank you so much Baris Derin Rated 5 out of 5 stars

Thank you for your efforts ! It's working again. As you can imagine, this app is important to me. Encouragements. Warm Regards.

This review is for a previous version of the add-on (48.5). 

Thank you, Baris. Rated 5 out of 5 stars

As others have reported, this add-on has been updated to 48.5 and now works again.

What some people apparently don't realize is that Firefox add-on developers also have families, jobs, and other things to do in their lives.

They provide these mini-masterpieces as a service and do it on their own time. Most of them are not related to Firefox (Mozilla) in any way shape or form - and certainly don't get paid by them for this work.

Yes, some people ask for a contribution, and I think in most cases they deserve one.

In any case, I think the people who complained about this wonderful add-on being broken for about 24 hours owe the developer an apology.

Speaking for myself, thanks Baris, and keep up the great work.

JoeG
Berlin

This review is for a previous version of the add-on (48.5). 

Works again! Thanks Rated 5 out of 5 stars

Thanks for fixing it! Now works again as usual! Without it Thunderbird has too small fonts and for my eyes is a pain!

This review is for a previous version of the add-on (48.4). 

Hello,

Thank you very much for the report and sorry for the trouble.

We fixed the issue by the 48.5 version. You can install the latest 48.5 version from official page.
https://addons.mozilla.org/en-US/firefox/addon/theme-font-size-changer/

Let us know if you need any other help at:

support@barisderin.com

Regards,
Baris Derin

Only one developer... Bad Idea. Mozilla needs to address this issue. Rated 5 out of 5 stars

I was able to install the Mac OS X version 48.1 (from the recent "Older Versions Here" link in the user review below) and now this add-on is working again and Thunderbird has readable fonts in the Inbox Display Pane.

This add-on has been working great in the past. Why Mozilla doesn't offer users an easy way to change the font size for the Inbox Display Pane is a mystery. This annoyance has been a missing feature since the inception of Thunderbird. Mozilla should fix this. It's a bad idea to rely on only one developer when something breaks.

This review is for a previous version of the add-on (48.4). 

Hello,

Thank you very much for the report and sorry for the trouble.

We fixed the issue by the 48.5 version. You can install the latest 48.5 version from official page.
https://addons.mozilla.org/en-US/firefox/addon/theme-font-size-changer/

Let us know if you need any other help at:

support@barisderin.com

Regards,
Baris Derin

Steve R Rated 5 out of 5 stars

Just installed it as the LCARS scheme is small for someone with bad eyesight. This worked a treat, I now have the best of both worlds, LCARS interface and I can read it :)

This review is for a previous version of the add-on (48.1). 

Theme and font resizer Rated 5 out of 5 stars

Works perfect!!!!! Needed this so bad, the zoom only works on the page not the header part. Thanks again!

This review is for a previous version of the add-on (47.7). 

Essential appearance settings Rated 5 out of 5 stars

This is a great add-on. It's simple to set up and change anytime. My menus, including the context menu, and tab titles are finally readable. This will help me lessen my headaches. Thank you!

This review is for a previous version of the add-on (47.3). 

super ! Rated 5 out of 5 stars

Kan eindelijk mijn mails goed lezen en de kleur aanpassen zodat ik nog beter kan onderscheiden.
precies wat je nodig hebt als je de letters van je mailbox te klein vind.
Supergemakkelijk te gebuiken, werkt direct.
Thank you so much..!:-)

This review is for a previous version of the add-on (47.3). 

Great, A1 Rated 5 out of 5 stars

Should be standard part of the program.
Very easy to install, works perfectly

This review is for a previous version of the add-on (45.1). 

A revelation for my old eyes Rated 5 out of 5 stars

Enough said and THANK YOU!

This review is for a previous version of the add-on (45.1). 

Great! Rated 5 out of 5 stars

Thank you so much for this fantastic add-on. It just gives me the fonts back for Firefox and Thunderbird that Windows 10 took away.

This review is for a previous version of the add-on (44.2). 

theme font changer Rated 5 out of 5 stars

it is good to use theme font changer.it is very useful for visually impaired people and wide screen users

This review is for a previous version of the add-on (44.1).