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Resolved Update: apparently cat cannot write to /etc. Resolved by using:

sudo tee /etc/apt/sources.list.d/mozilla.sources <<eof types: deb uris: https: packages.mozilla.org apt suites: mozilla components: main signed-by: etc keyrings packages.mozilla.org.asc eof < p></eof>

The instructions need updating!

_________________original problem (in case some one else needs the information)

I am following the instructions in section "Install Firefox from Mozilla Repository (Recommended)" at https://support.mozilla.org/en-US/kb/run-firefox-chromeos At step 4 I am receiving a permission denied error: "-bash: /etc/apt/sources.list.d/mozilla.sources: Permission denied" I am not sure how to resolve or continue.

Last command and output:

username@penguin:~ cat <<EOF > /etc/apt/sources.list.d/mozilla.sources Types: deb URIs: https://packages.mozilla.org/apt Suites: mozilla Components: main Signed-By: /etc/apt/keyrings/packages.mozilla.org.asc EOF -bash: /etc/apt/sources.list.d/mozilla.sources: Permission denied

I can't install Mozilla VPN on MacOS 10.15.8. The installation programm tell me to ask for help to the editor of the VPN... I'm afraid that it's possible there is NO version available for my old machine... Am- I right ?

Since a few days I'm unable to download or re-install Firefox on my laptop. This follows performance problems which I wanted to solve by uninstalling / reinstalling the browser. The installing process ultimately times out.

Dear Sirs! I've been trying to install FF in several ways. Using installer.exe and setup150.exe. I started these files from same disk as the system (C), Temp folder empty and unlocked for read\write, located where it should be C-user-appdata-local-temp. I started files as administrator. Each time the setup fails with system notice like on the picture attached. It says "can not find specified file"

My notebook is very old, but it runs Win 10 OK, Chrome is OK also

Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz 2.27 GHz 4,00 Gb SSD 224 GB SSD P4-240 Mobile Intel(R) 4 Series Express Chipset Family (Microsoft Corporation - WDDM 1.1) (64 MB) x64 system

Please help!

google blocking Firefox download. What do I do? When I open the downloaded browser app icon from Google store the browser changes to Google and Firefox is not in the drop down list either.

I was having trouble with site crashing so I deleted the App and downloaded new App and upon loading it said corupt file in the process and will not load . Google works fine