Does it work if you use a different profile with -p?

Maybe with --no-remote

on my firefox if i right click on a part of the page the website hasn't hijacked, it gives the option to "take screenshot" - which i think required enabling a setting somewhere. I hope it wasn't in about:config or wherever the dark-art settings are. I use that feature of FF to screenshot youtube videos with the subtitles moved and the scrub bar cropped out, i feel like it's a cleaner and smaller clipboard copy than using win+shift+s. Microsoft changed a lot about how windows handles ... files ... internally and screenshots are huge .png now, making me miss the days of huge .bmp.

also as mentioned above, if you need entire sites backed up the firefox extension "singlefile" is the business. if image-y things? bulk image downloader (costs money but 100% worth; you know it if you need it: BID); and yt-dlp + ffmpeg for video, in powershell (get 7.5.0 do yourself a favor!)

```powershell

$userInput = Read-Host -Prompt '480 video download script enter URL'

Write-Output "URL:`t`t$userInput"

c:\opt\yt-dlp.exe `

-f 'bestvideo[height<=480]+bestaudio/best[height<=480]' `

--write-auto-subs --write-subs `

--fragment-retries infinite `

$userInput

```

> now try and go ahead how you could isolate these instances so they cannot see each other. this leads into a rabbit hole of bad design.

Okay, done:

  PROFILEDIR="$(mktemp -d)"
  firefox --no-remote  --profile "$PROFILEDIR" --screenshot $PWD/output.png https://xkcd.com
  rm -r "$PROFILEDIR"

What's the rabbit hole?

Whats with the dbus interface?

What?

(If you're trying to point out that two firefoxes are capable of talking to each other via system IPC, then yes, fully isolating any two programs on the same machine requires at least containers but probably full VMs, which has nothing to do with Firefox itself, and you'd need to explain why in this situation we should care)

LOL, you and I posted very similar replies at the same time.