SH said

The Theme & Font size changer periodically stops working (all the messages become tiny) and goes missing. I have tried reinstalling version 62.0 for TB, but nothing happens - in the past when I've done a reinstallation it has worked. Can someone please let me know why this is happening? P.S. I use the same Theme & font size changer with FF 57.0.4 and it works fine, never goes missing.

sfhowes said

https://support.mozilla.org/en-US/questions/1198299#answer-1060415

sfhowes said

https://support.mozilla.org/en-US/questions/1198299#answer-1060415

I've tried the green button several times, but get nothing. This is very strange - T&FC has stopped & gone missing before, but I've always been able to reinstall it.

There is a message next to the download button "This version is not compatible with this version of Thunderbird"

This is what I've been using.

sfhowes said

See my post concerning the T&FSC add-on, and right-click the xpi link in step 1, Save Link As.... Once you have it downloaded, open Tools/Add-ons/Extensions, click the cog icon next to the Search bar, select 'Install Add-on from File...', then select the xpi file. This applies to all add-ons, but in this case you will have to modify the add-on xpi file as explained in the rest of the post.

Why so much technicality, for what should be a simple Add On installation?

And what is going on that is causing this situation that was not before?

Where do I find the archive? I've looked at T information - did not see archive.

Is there an easier way - I'm pretty good at tech stuff, but not this good.

OK - I changed the file to a zip file, then I right click and go to Text Edit App. But then It tells me that Text Edit App. cant open this type of file.

Well. I've tried doing the Zip method several time all from scratch, but nothing happens.

I did restart TB and T&F Size Changer is listed in the Add-On's page, but there is no control button in the control bar.

What is the procedure/process for - Zip the archive back?

Please explain the: zip from inside the xpi directory? If it's been changed to a zip file then how do I get inside the xpi directory?

Here is a copy of the modified add-on:

https://www.dropbox.com/s/e2sc3gr4mogsi0h/theme_font_size_changer_for_thunderbird-62.0-sm%2Btb.xpi?dl=0

Zenos said

Here is a copy of the modified add-on: https://www.dropbox.com/s/e2sc3gr4mogsi0h/theme_font_size_changer_for_thunderbird-62.0-sm%2Btb.xpi?dl=0

Thanks much for the link - I've tried several times, how do I open it??

I copy & paste the link in my FF, but I get a message that the file cant be viewed. I also tried a direct download, but not sure what to open it with.

SH said

Zenos said

Here is a copy of the modified add-on: https://www.dropbox.com/s/e2sc3gr4mogsi0h/theme_font_size_changer_for_thunderbird-62.0-sm%2Btb.xpi?dl=0

Thanks much for the link - I've tried several times, how do I open it??

theme_font_size_changer_for_thunderbird-62.0-sm+tb.xpi Sign in .xpi files can’t be previewed theme_font_size_changer_for_thunderbird-62.0-sm+tb.xpi · 498.55 KB

"Direct download" will place it into your downloads folder. Then these instructions can help you install it.

https://support.mozilla.org/en-US/kb/installing-addon-thunderbird

A regular contributor to the newsgroup has also prepared a version:

http://www.rossde.com/ThemeFontSizeChangerNoexpire/index.html

Zenos said

"Direct download" will place it into your downloads folder. Then these instructions can help you install it. https://support.mozilla.org/en-US/kb/installing-addon-thunderbird A regular contributor to the newsgroup has also prepared a version: http://www.rossde.com/ThemeFontSizeChangerNoexpire/index.html

EUREAKA!!! It worked - Thank you VERY much! Now, how do I prevent it from going missing again (as it has done several times before)??

Thank You!

Thank You!

Hi, I've used the above link addon and it was disabled at next boot of Thunderbird v52.5.2.

I heard about a CSS file to modify the TB aspect, but I cannot find any reference to that.

Anyone has any clue about how to make bigger the system font of TB, I'm open to chat and look for a solution, the current font is too small and so difficult to read, the messages and the interface itself.

Thanks in advance. Cayetano H. Osma

Here is a description of how to do it using the css file:

https://support.mozilla.org/en-US/questions/1198055#answer-1059555

Further down is another suggestion about doing it via the Config Editor:

https://support.mozilla.org/en-US/questions/1198055?page=2#answer-1062172

…and yet another approach, on the same lines, discusses changing this parameter:

layout.css.dpi

The link & instructions previously provided by Zenos worked as I previously indicated and gave my thanks for.

I've resolved the issue installing the modified add-on from http://www.rossde.com/ThemeFontSizeChangerNoexpire/index.html

Testing and working on TB 52.5.2 (64-bit) on Mac OS X Sierra

Thanks to SH, Sfhowes and Zenos.

Regards, Cayetano H. Osma