You can find details about a TB68 version at:
@shankar_pec Did not understand where exactly you need to make the changes. I found the file but clueless on what to change.
I can see 2 text area for search. and doesn't seem to be working.
Anyone can please help.
I've been struggling a long time trying to make this work. I succeeded with some hacking the installer and then with CSS, however it was not 100%.
Then I accidentally stumbled upon this: https://bitbucket.org/alta8888/totalquickfilter/wiki/Home
It took me a little bit longer to grasp the whole functionality, however at the end it is even more powerful. And it simply works in TB 68 without any hacks.
Perhaps someone else will find this useful. Have no idea why this is not available in add-ons...
I have donated Mr. Wang. Hope he will continue the development. The described workaround worked for me. Thank you for all contributed..对这个附加组件，此用户曾发表过1个评价。
Copy pasting the from the github page:
User uasenn has provided the following solution and it works for me too.
1.4 rc1 works for me after update.
Here (not so obvious but worked) steps to fix v68 compatibility issue:
(optionally) You may patch css to avoid 2 Expression Searches in a single box issue. Just patch skin\overlay.css as proposed here. Hint: you can use vim to edit skin\overlay.css inside of gmailui-1.4-tb.xpi without renaming it
Uninstall (or disable) extension in TB
Install gmailui-1.4-tb.xpi using Install Add-on From File command
p.s. thanks @wangvisual for great extension
Like everyone else have had to drop back to 60.9.1 which I believe is the last version to support this ESSENTIAL add-on.
Really hope the developer is still active - have sent my $5 and now keeping fingers crossed.
For me Thunderbird is unusable without this search ability - hence the downgrade.
plz update ^^
Unfortunately I have updated my TB to 68 and lost this extremely useful add-on. I am now moving back to TB 60 to use this add-on but request team to please update this ASAP
The only reason I regret moving to v68 is the loss of Expression Search / GMailUI. It would be really great if someone could take the time to update it.
For all interested in updating this addon, please vote in https://bugzilla.mozilla.org/show_bug.cgi?id=538821 (under the 'Details' paragraph) but please don't add any comment to the thread if you don't add further information, it's not useful and could disturb the work of thunderbird developers. Thanks!
This is a GREAT add-on to Thunderbird! Please update this add-on. I use it many times a day. I will donate to keep it going.
Update for TB 68.4.1
This is a brilliant add-in for Thunderbird. Please update for TB68+
Please support for 68+ ,
Is there any other addons like expression search if it is not support for 68+ version
I see a lot of people are annoyed with the incompatibility of the ES with the latest version of TB. Just a quick reminder that version 1.4 RC1 does work with TB Version 68.3.1 - see this post by Rich-R: https://addons.thunderbird.net/en-US/thunderbird/addon/gmailui/reviews/1160074/
Excellent, but upgrade needed for TB 68+对这个附加组件，此用户曾发表过1个评价。
as Teddy already mentioned:
best way to show your contribution is done by clicking the button above and send 5 bucks.
Even though this is free to use - one has to put in a lot of effort!
Nice to see that you are the brain behind this extension either.
It made searching multiple times easier than the standard Thunderbird search "crap".
Now, as I see you may still concentrate quite much time on your extensions to "overcome" the enhancements of v.68 ...
Boring to see, how Mozilla does NOT CARE on its supporters, and abruptly alters Thunderbird's API, so that NO extensions work anymore...
So, WE your most trustful supporters (the users of your extensions) want to thank you one more for your nice work. We apologize for Mozilla's weak strategy in regard to its free-APIs, and we want to give you support to keep your nice work.
Many thanks again!
This addon is my main reason to use Thunderbird like others. This software increases my productivity 10 times. It really really helpful. I have made donations in the sense of gratitude until now. And I really hope the programer to update!!