Tools|Message Filters

https://support.mozilla.org/en-US/kb/organize-your-messages-using-filters

None of these seem to work. Tried to set a filter that if receiver is bbb@abc.com - send to a folder, but doesn't quite work.

Message filters automatically act on New incoming mail, not on mail already downloaded; the filter will need a manual run to do that.

Did you do the following? 'Menu icon' > 'Message Filters' > 'Message Filters'

Filters for: make sure correct mail account is selected: aaa@abc.com click on 'New'

Filter Name: type suitable name Apply filter when: select 'Manually Run Select 'Getting New Mail' select: 'Filter before Junk Classification'

Select: 'match all of the following' 'From' and 'contains' and type: bbb@abc.com Perform these actions select 'Move Message to' and select the desired folder. click on 'OK'

Move filter to the top of the list. Enable the filter by selecting the checkbox. click on 'Filter Log' button select checkbox 'Enable the Filter Log' click on 'Close'

If you currently have some of those bbb@abc.com emails inthe 'Inbox' and want to manually run that filter.

Make sure the new filter is the only filter enabled. Run selected filters on : select the Inbox on account. click on 'Run Now'

this should check the 'From' on all emails in the Inbox and move specific emails to desired folder. Any new incoming mail should then be auto moved.

Please report back on results.