524684 - The text for various options in the per-account "Synchronization & Storage" screen are confusing

Status: UNCONFIRMED

(Thunderbird :: Account Manager, defect)

Description

[Saul Tannenbaum]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.5pre) Gecko/20091023 Lightning/1.0pre Shredder/3.0pre

Under Synchronization & Storage, one sees:

- Message Synchronization
     Keep messages for this account on this computer
                             (Advanced)
- Disk Space
To save disk space, downloading messages from the server and keeping local copies for offline use can be restricted by age size
    Synchronize all messages...

etc.

It is, to me, unclear from the wording, as well as the behavior of the preference, whether these are two different controls of the same option, or two different options. 


Reproducible: Always



Expected Results:  
Parallel wording should be used to help reinforce that this is one option.

For example, the text under "Message Synchronization" might read "Download messages for this account from the server for offline use use..." as the current "Disk Space" read.

Alternately, the text  under "Disk Space" might read "To save disk space, the messages kept on this computer for this account can be restricted..."

Comment 1

[WADA:World Anti-bad-Duping Agency]

FYI.
Bug 537943 is for improvement of "Advanced" button. xref.
See bug 562589 comment #1 for summary of current behaviour of "Keep messages...".
See bug 562589 comment #10 for rough sketch of auto-sync, offline-use, Download Now.

Comment 2

[WADA:World Anti-bad-Duping Agency]

Bug 537943 comment #17 is a proposal of improvements.