Firefox "suspends" UI/DOM updates when its window is in the background or loses focus?

I'm working to support a user who uses Firefox 79 on macOS 10.15. Throughout the day, this user has to run a long-running Python script that uses the selenium module and … (read more)

I'm working to support a user who uses Firefox 79 on macOS 10.15.

Throughout the day, this user has to run a long-running Python script that uses the selenium module and geckodriver to have Firefox automatically interact with some ancient web based accounting software.

This approach is out of my control, I did not implement it, and being a very small company, there's no budget to change it or buy new hardware. It is what it is.

We also can't run in any sort of a headless mode, as the user must sometimes manually interact with this ancient accounting web site in rare cases.

The script itself works fine, as long as Firefox's window retains focus or stays in the foreground the whole time. It can run successfully for days like this.

The problem happens when Firefox ends up becoming a background window while the Selenium script is still running.

This happens often, as the user usually also has other stuff that needs to be done on this computer.

When in the background, Firefox and the Selenium script will work fine for some time. But then it's like Firefox suspends itself.

The Selenium script can still communicate with Firefox, but it's like Firefox has stopped updating the UI or the DOM for some reason.

This can cause the Selenium script to fail, as it can't find elements that it expects to be present in the DOM.

If the Firefox window is brought to the foreground again, it shows an outdated page rendering and the cursor is a "+" cross shape. Clicking within the Firefox window, for example, seems to refresh the UI, and it'll show the correct, current page after a few seconds.

Does Firefox do something to suspend tabs or windows that no longer have focus or are no longer in the foreground?

If it does, is there some way to easily disable this?

I can understand something like that being useful to save energy on laptops, for example, but in our case it's destroying Firefox's usability for this long-running Selenium job.

Many thanks!

Asked by Tim 53 seconds ago

shield

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Asked by acker1147 6 minutes ago

Can not retrieve email after changing AT&T password.

So I have 3 AT&T email accounts with Thunderbird. Yesterday I got an email form AT&T requesting I change my password. No biggie....do it all the time. Well sinc… (read more)

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The sooner I sign in the web page becomes blank

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Asked by Don 1 hour ago

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Asked by emgiasson 1 hour ago

Thunderbird stopped working with office365 after update

I am running Thunderbird 78.1.1 on a Mac (OS 10.13.6 = High Sierra). I've been using Thunderbird as my email client for over a decade. On Monday Thunderbird asked me to… (read more)

I am running Thunderbird 78.1.1 on a Mac (OS 10.13.6 = High Sierra). I've been using Thunderbird as my email client for over a decade. On Monday Thunderbird asked me to update (to 78.0.1) and after I did that it stopped sending or receiving email via my work account, which is via smtp.office365.com. Thunderbird has frequently been slow via both my accounts, but now it is timing out ~80% of the time to my gmail account and 100% of the time on my work account. I did not change any server or email settings. My ISP is AT&T Uverse, my firewall is the built-in Mac firewall and I turned that off without effect. I am not running anti-virus software, to the best of my knowledge. The error messages I'm getting when trying to send email are

"Sending of the message failed. Peer’s Certificate issuer is not recognized. The configuration related to smtp.office365.com must be corrected."

and the same thing using the gmail server: "Sending of the message failed. Peer’s Certificate issuer is not recognized. The configuration related to smtp.gmail.com must be corrected."

Two screenshots of my smtp settings are attached.

Thanks for any guidance!

Asked by ted.von.hippel 22 hours ago

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After hooking up four devices to sync through Firefox, I ended up with a mess and a lot of irritation which I have not recovered from. That was six months ago. What I failed to understand is that there is no control of the direction of sync. I presumed that all would sync from my primary account computer. Wrong and truly a disaster because I had spent hours organizing thousands of bookmarks. An old computer with an old bookmarks setup (very disorganized) added its confused mess back into my attempt on the new computer to finally get organized. I still have not sorted through most of the mess.

So how in the hell does Sync actually and exactly work? Is there any directional flow? Or does it just mash the shared stuff together. How can I delete any bookmark file Sync has at Firefox server with exact knowledge of what I am doing? Why is this stuff so obscure? I exactly want to know how to ensure that Sync has no cache of obsolete material and exactly, if possible, to direct the flow....should I use only share a tab? one at a time?

Thanks, Michael Mandeville, Arizona mwman@q.com

Asked by mwman 1 hour ago

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Asked by 351cougar 2 hours ago

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After a windows update my computer decided I was on a trial version of windows and made a mess of a lot of things. Not a problem I thought as I had everthing backed up, i… (read more)

After a windows update my computer decided I was on a trial version of windows and made a mess of a lot of things. Not a problem I thought as I had everthing backed up, including firefox and thunderbird (on 78.1.0) both as mozbackup files and by copying the contents of the profile folders. Thats the background, now the problem. Thunderbird refused to recognise my mozbackup restore. Not a problem I though I'll just copy my thunderbird 78.1.0 profile into the 78.1.0 profile on my restored ssd.

It doesn't work. Thunderbird won't read its own profile!

This is very frustrating and I can't see a way round this, any help would be gratefully received as I'm dealing with emails over the last ten years

David

Asked by blenkinsopp_david 2 hours ago

Printing e-mails

I am on Windows 10, Thunderbird 80.0b1 (32-bit) and have an HP OfficeJet Pro 8720 printer. None of the print.printer lines appear in my Thunderbird config so hitting the… (read more)

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