Is there a particular addon you are missing?

Amazingly stupid people do Mozilla (my personal opinion). I wrote my post a very long time ago, they answered me only now. Second, with each update of the mail program, it is getting worse and worse. It's not clear why to make sure that excellent addons stop working? Perhaps this is because the Mozilla masters are very envious of people who are smarter than them and can come up with really useful things. For example, the question related to the size of fonts has not been resolved in the mail program. A clever man came up with addons Theme & Size. Now it does not work. Why? There is no explanation. It is better to make the program paid, but so that it works.

Amazingly stupid people do Mozilla (my personal opinion). I wrote my post a very long time ago, they answered me only now.

And you wonder why some volunteer did not respond? Surely you jest.

To be serious, Thunderbird is not made by Mozilla, it has not been for a long time really. They stopped their feature development contribution in 2012.

Thunderbird is build on the Mozilla platform (as is Firefox) and as such has to accept certain decisions made by the Firefox development team. This includes the need to change from XUL addons to webextensions.

Addons/Extensions have been and will remain the property of their developers, the choice to update them or not is made by the individual developer. Prior to Thunderbird 68 being released efforts were made to get developers involved and to assist them in updating their addons. Some chose to walk away others passed on the mantle to new developers and some addons were simply re written by new developers. Yet others fell into the simply abandoned and unpopular so no one was interested in taking them on.

You were asked what addon was now missing from Thunderbird 68. Please offer a concrete example. Not derision that a volunteer chose to respond, regardless of how long you waited.

Thunderbird 68 has a scaling setting that can be used in the config editor to change the scale used to display fonts and the general user interface. Search for the preference layout.css.devPixelsPerPx, select the entry and right click it and select Modify from the menu. Enter a value of 1.20 or 1.25. these set the scaling to 120% and 125% respectively. Please be careful you do not put to large a number in so your layout is simply to large to be displayed. (windows internally only offers 125% scaling, so I really don't recommend numbers larger than that. While it is not a complete replacement for the Theme and Font size changer, it largely removes the need for it to exist as scaling was the real accessibility issue it was designed to fix.

Some of the other support topics mentioning the setting can be located with this search

Dear Matt, Thank you for your answer. Who cares who is involved in supporting this email program? The main thing is that the program can work the way any program should work - clearly, clearly, and without wasting nerves and time. This is not, and I'm not the only one who claims that with each update the program works worse and worse. I am ready, for example, to pay for using the program, since Thunderbird is best suited to my needs. As for the size and your offer (Config editor), I tried to do it. Unfortunately, this did not suit me. The absence of addons, which previously helped make the program more convenient, led to the fact that I was forced to return to version 60. Therefore, I propose once again - either to change the team of engineers to those responsible, who understand the needs of the market and the consumer or to somehow update the program so that with each update it is better and better. And maybe even charge for the program. You and your colleagues do not need to search and ask what addons are needed. Just go to the site where the addons are located and read which people really need. So they need to be done. And then on this site, you need to do an elementary cleaning, there is so much unnecessary information and junk that is given, which must be removed. In general, you have a lot of work. I would like to wish you success.

'Addons - Font Size' ....This is not exactly a question and the information below does not describe the actual problem.

So, I have absolutely no idea what your problem is other than it is to do with font size and you previously used someone elses addon program to fix the problem.

Using the 'config editor' to change the pixel ratio effects the entire UI, but did you have an issue with the entire UI ?

If you require help, please offer useful information describing the problem.

State what OS you are using.

Is the problem only in one particular area ? Is it the Folder Pane, Thread Pane, Messages incoming, messages you write, menus ?