Does the preferred symbol re-appear if you disable QuickFilters? If so, your issue is with QuickFilters and I'd suggest you ask its author what could be done.

Personally I prefer the crossed circle symbol. X is over-used and can mean, dependent on context, either 'close' or 'delete' . A universal separate symbol for 'delete' would suit me fine.

Hello Zenos-Thanks for your reply. I researched your answer but could not come up with a mechanism for selecting the symbol next to the word delete.

After a few days, I decided to move the delete symbol to the far right of all the symbols. After I did this, the crossed circle symbol vanished and the "BIG RED X" reappeared. So I am pleased.

Here is something else that would help me if I knew how to do it. I would like to create a brand new symbol, one that is not on the list of symbol choices. The symbol I would like to create is "MOVE TO".

Thanks very much

Marvin

This is a support forum for Thunderbird. Add-ons are supported by their individual developers. Axel is quite active in the Thunderbird community, and I am sure he will help you with our questions about his add-on.

I have more information. The red X is just one symbol among many that seem to come and go at random. For example, the "WRITE" function has a particular symbol ( a pencil and paper), the "PRINT" function as a printer as a symbol, etc

I do not know what action on my part causes the entire group of symbols to appear and reappear.

Marvin