Add-on has not functioned since TB 52. Button is not in toolbar, option is not in menu. Developer is unresponsive to contacts. It's a shame, because when it worked, it was wonderful. This feature should be part of TB by default and not forced to be provided by a third party add-on. Instead, Mozilla forces Lightning on us.
Thank you so much Steve for the clear explanations and the procedure to keep enjoying this great add-on for people like me using various screen sizes and devices. I get the right font size in two clicks! Too bad Baris Derin did not bother to make the adjustment himself, he is still to be commended for offering this great feature to the community.
I'm disappointed by seeing people giving so many one-star reviews for something that is so easily fixed. We should be congratulating the author for this great plugin, without which TB would be completely unusable for many of us. Please use this workaround for the date checking issue rather than forking the add-on.
Here is how to fix the date check issue in the official release: - download the "xpi" file for the latest TFSC release. - change the file suffix from xpi to zip - unpack the zip file into a work directory - in your work directory there will be a file called "bootstrap.js". In that file, search for a function called "compile:function()". Comment out the line that begins with "if(new Date().getTime()". - Save your changed bootstrap.js - zip the contents of your work directory into a new .zip file. Note that you need to zip the contents of the work directory, not the directory itself. - change the suffix of your new zip file to xpi. - install your xpi file as a thunderbird add-on. - set automatic updates to off for your new version
A great add-on when it works. But the original add-on failed due to a date expiration, and next one failed 3 months later apparently for the same reason. Avoid the aggravation and install the non add-on fix from Mr. Bob. Simple and easy fix with no date expiration. Have used on 2 TB accounts on 2 Win 10 laptops with no issues. Font size is now adjustable again. Thanks Mr. Bob!
After downloading and adding this add-on, it is listed in both Firefox and Thunderbird as being enabled, but there is no place to actually find and work with the add-on i.e. change the application (NOT the message composition) font sizes. If I can't solve this problem real soon, I'll have to kick both Firefox and Thunderbird through the goalpost of life - can't read the toolbar and message pane script in Thunderbird. Apparently the default download for Thunderbird for the latest Windows 10 is a32-bit version 52.7.0 with which nothing seems to work properly and for the default 64-bit version of Firefox for Windows 10 called "Quantum," this add-on doesn't work. Please don't bother flaming me for these comments. I do know what I'm talking about