On 8/18/2020 10:41 AM, NFN Smith wrote:
Ant wrote:

Mine does in my decade old, 64-bit W7 HPE SP1 PC. My quad core CPU's single CPU goes bonker to its max. SM just freezes and doesn't respond for a minute or so. Doing anything, like quitting SM, is delayed big time. I noticed this for weeks too. Did Google change something recently again? :( What about your computer(s)?

Thank you for reading and hopefully answering soon. :)


How much RAM do you have?

6 GB of RAM.


Also, if you look at the Task Manager, what's the memory demand coming from Seamonkey?

Like 1 GB with seamonkey.exe.


What extensions do you have active, and do you run any mail processing filters?

Last updated: Tue Aug 18 2020 10:50:00 GMT-0700 (Pacific Standard Time)
User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 SeaMonkey/2.53.3

Extensions (enabled: 6)
* ColorfulTabs 31.1.9 (http://www.addongenie.com/colorfultabs)
* DOM Inspector 2.0.17.2 (http://www.mozilla.org/projects/inspector/)
* Expire history by days [converted] 1.2.0
* Open With 6.8.6 (https://github.com/darktrojan/openwith)
* PrefBar 7.1.1 (http://prefbar.tuxfamily.org/)
* uBlock Origin 1.16.4.24 (https://github.com/gorhill/uBlock-for-firefox-legacy)

Mailing filters? No, I don't use any in http://gmail.com's web site.
Also, I am only there for just quick sessions (up to ten minutes).


It could be that there may be some sort of script that's active, although I've never seen anything hammer just one core.

I've long suspected that there's some sort of memory leak issue in Seamonkey, but I've never gotten any further than that.  I know that when I leave it on for a long time (especially overnight) I often see relative high memory use (sometimes, in excess of 2 GB), really slow performance, and more frequent warnings of timeouts on scripts.  A restart of Seamonkey normally clears that problem.

Yes, that but I can reproduce that within minutes like on YouTube, LinkedIn, Facebook, Twitter, etc.


If I take a look at about:memory, there's indications of active scripting from message filters in the mail client, as well as scripting from previously-opened tabs in the browser.  I've found that sometimes running a "Free Memory" can lower memory usage, and sometimes improve performance a little.

I tried to do that after Gmail's sessions, but so dang slow and unresponsive!


I know that a couple of months ago, I was filling in a form on a morning after I had left Seamonkey open overnight, and this was one of those forms that launches a script for every single field.  Everything was really slow, and by the time I got to the end of the form, I was getting scripting timeout errors, and it was pretty painful.  The only reason I didn't restart Seamonkey was that I didn't want to start the form over from the beginning again.

Oh, I hate those!!


I will note that I'm a long-time user of NoScript and uBlock Origin (and Adblock Plus before that), and it seems that uBlock may be the culprit for me, especially since I have a lot of user-crafted rules (I tend to block annoying graphics that I don't want to see, even if they're not ads).

All that said, I've noticed that since I upgraded to 2.53.3, I notice a lot less performance issues, especially if I leave Seamonkey active overnight.

UO Legacy here too. Yeah. :(
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