Back up cannot open file

What is the output of the command

ls -la /home/stan/.mozilla/firefox/3qorzo1u.default/

Here is the output of above command.

~$ ls -l /var/log/dist-upgrade
total 0
stan@Roo:~$ ls -la /home/stan/.mozilla/firefox/3qorzo1u.default/
total 51316
drwx------ 16 stan stan 4096 Aug 29 11:04 .
drwx------ 4 stan stan 4096 Aug 22 12:37 ..
-rw------- 1 stan stan 24832 Aug 28 17:21 addons.json
-rw------- 1 stan stan 244799 Aug 28 17:25 blocklist.xml
drwx------ 2 stan stan 4096 Aug 28 11:41 bookmarkbackups
-rw------- 1 stan stan 196608 Aug 28 17:40 cert8.db
-rw------- 1 stan stan 160 Aug 24 09:16 compatibility.ini
-rw-r--r-- 1 stan stan 720896 Aug 28 17:40 content-prefs.sqlite
-rw-r--r-- 1 stan stan 524288 Aug 29 11:10 cookies.sqlite
-rw-r--r-- 1 stan stan 32768 Aug 29 11:10 cookies.sqlite-shm
-rw-r--r-- 1 stan stan 623080 Aug 29 11:10 cookies.sqlite-wal
drwx------ 3 stan stan 4096 Aug 29 11:03 crashes
drwx------ 3 stan stan 4096 Aug 29 11:08 datareporting
-rw-rw-r-- 1 stan stan 2 Aug 28 17:40 enumerate_devices.txt
drwx------ 4 stan stan 4096 Aug 23 21:10 extensions
-rw-r--r-- 1 stan stan 550 Aug 23 21:10 extensions.ini
-rw------- 1 stan stan 23411 Aug 28 17:27 extensions.json
drwx------ 3 stan stan 4096 Aug 22 12:46 features
--wxrw--wt 1 stan stan 47984664 Aug 23 21:09 ffmpeg
-rw-r--r-- 1 stan stan 196608 Aug 29 11:04 formhistory.sqlite
drwxr-xr-x 2 stan stan 4096 Aug 23 21:10 FVD Single
drwx------ 3 stan stan 4096 Aug 29 10:06 gmp
drwxr-xr-x 3 stan stan 4096 Aug 22 12:38 gmp-gmpopenh264
drwxr-xr-x 3 stan stan 4096 Aug 23 21:08 jetpack
-rw------- 1 stan stan 16384 Aug 28 17:40 key3.db
lrwxrwxrwx 1 stan stan 15 Aug 29 11:01 lock -> 127.0.1.1:+2744
-rw------- 1 stan stan 6013 Aug 29 11:04 logins.json
-rw-rw-r-- 1 stan stan 6271 Aug 28 13:13 mimeTypes.rdf
drwx------ 2 stan stan 4096 Aug 28 15:42 minidumps
-rw-rw-r-- 1 stan stan 0 Aug 29 11:01 .parentlock
-rw-r--r-- 1 stan stan 98304 Aug 28 17:40 permissions.sqlite
-rw-rw-r-- 1 stan stan 57 Aug 28 10:16 persdict.dat
-rw-r--r-- 1 stan stan 10485760 Aug 29 11:10 places.sqlite
-rw-r--r-- 1 stan stan 32768 Aug 29 11:10 places.sqlite-shm
-rw-r--r-- 1 stan stan 98408 Aug 29 11:10 places.sqlite-wal
-rw------- 1 stan stan 5568 Aug 22 12:37 pluginreg.dat
-rw------- 1 stan stan 22699 Aug 29 11:02 prefs.js
-rw-rw-r-- 1 stan stan 8243 Aug 29 11:02 revocations.txt
drwx------ 2 stan stan 4096 Aug 29 11:03 saved-telemetry-pings
-rw------- 1 stan stan 19102 Aug 22 12:37 search.json.mozlz4
-rw------- 1 stan stan 16384 Aug 22 12:37 secmod.db
-rw------- 1 stan stan 90 Aug 29 11:02 sessionCheckpoints.json
drwx------ 2 stan stan 4096 Aug 29 11:10 sessionstore-backups
-rw-rw-r-- 1 stan stan 406 Aug 29 11:07 SiteSecurityServiceState.txt
drwxr-xr-x 5 stan stan 4096 Aug 23 12:14 storage
-rwx------ 1 stan stan 29 Aug 22 12:37 times.json
drwxr-xr-x 2 stan stan 4096 Aug 29 11:02 webapps
-rw-r--r-- 1 stan stan 98304 Aug 28 17:40 webappsstore.sqlite
-rw-r--r-- 1 stan stan 32768 Aug 29 11:02 webappsstore.sqlite-shm
-rw-r--r-- 1 stan stan 65616 Aug 29 10:07 webappsstore.sqlite-wal
-rw------- 1 stan stan 802 Aug 29 10:07 xulstore.json

There must be something really wrong with this computer. The output did not look like this in the terminal.

Any Idea what could be causing this?

The file protection setting or the file listed in the error message is completely weird:

--wxrw--wt 1 stan stan 47984664 Aug 23 21:09 ffmpeg

You have only write and execute access, but no read!

Try

sudo chmod a+r /home/stan/.mozilla/firefox/3qorzo1u.default/ffmpeg

and then verify the settings with

ls -l /home/stan/.mozilla/firefox/3qorzo1u.default/ffmpeg

(If that does not work at all, then you might consider deleting the file.)
I assume the file is a Firefox add-on.

Ok, well this did absolutely nothing. I will delete the file the next time backup is completed and gives me this message.

Also, did you look at the post # 2? The output is curving and is not straight like a normal output.
Is this a problem with the software or computer?

Have you seen this before?

Thank you.

What is now the output of

ls -l /home/stan/.mozilla/firefox/3qorzo1u.default/ffmpeg

You have to be aware that in a terminal windows you have a font where all letters have the same width, but here on Launchpad formatting is with a proportional font with different letter widths.
And due to html formatting all multiple space characters are replaced by a single one.
So this strange formatting of output is perfectly normal.

Ok, I understand.

Here is the output of above command.

$ ls -l /home/stan/.mozilla/firefox/3qorzo1u.default/ffmpeg
-rwxrw-rwt 1 stan stan 47984664 Aug 23 21:09 /home/stan/.mozilla/firefox/3qorzo1u.default/ffmpeg

Thank you

The file protection settings of that file have been modified. I assume that the backup process will now be able to copy it.

Thank you,