How do i fix?I attempted to upgradeto FF27-got error message - Possibly unable to install XOR? - I found a log-it says error 32, 9 times-respond

Question

''Email address removed by moderator Andrew (feer56). Please read [[Forum rules and Guidelines]]''
I am running Windows 8 and don't really know it well.
I need to keep all bookmarks - I don't have a back up or how to make them.
I was attempting to update from ff26 (I think) to ff27. I received an error message saying that XOR?? objects could not be updated I THINK but am not sure of the exact message.
I found a log called last-update.log in
directory Owner\AppData\Local\Mozilla\updates\E7CF176E110C211B\updates
The date of the file is 2/14/2014<br />
This a copy of the log. (if it is the correct one)
<pre><nowiki>****log start*****************************************************************************
Could not disable token privilege value: SeAssignPrimaryTokenPrivilege. (1300)
Could not disable token privilege value: SeAuditPrivilege. (1300)
Disabled unneeded token privilege: SeBackupPrivilege.
Disabled unneeded token privilege: SeCreateGlobalPrivilege.
Disabled unneeded token privilege: SeCreatePagefilePrivilege.
Could not disable token privilege value: SeCreatePermanentPrivilege. (1300)
Disabled unneeded token privilege: SeCreateSymbolicLinkPrivilege.
Could not disable token privilege value: SeCreateTokenPrivilege. (1300)
Disabled unneeded token privilege: SeDebugPrivilege.
Could not disable token privilege value: SeEnableDelegationPrivilege. (1300)
Disabled unneeded token privilege: SeImpersonatePrivilege.
Disabled unneeded token privilege: SeIncreaseBasePriorityPrivilege.
Disabled unneeded token privilege: SeIncreaseQuotaPrivilege.
Disabled unneeded token privilege: SeIncreaseWorkingSetPrivilege.
Disabled unneeded token privilege: SeLoadDriverPrivilege.
Could not disable token privilege value: SeLockMemoryPrivilege. (1300)
Could not disable token privilege value: SeMachineAccountPrivilege. (1300)
Disabled unneeded token privilege: SeManageVolumePrivilege.
Disabled unneeded token privilege: SeProfileSingleProcessPrivilege.
Could not disable token privilege value: SeRelabelPrivilege. (1300)
Disabled unneeded token privilege: SeRemoteShutdownPrivilege.
Disabled unneeded token privilege: SeRestorePrivilege.
Disabled unneeded token privilege: SeSecurityPrivilege.
Disabled unneeded token privilege: SeShutdownPrivilege.
Could not disable token privilege value: SeSyncAgentPrivilege. (1300)
Disabled unneeded token privilege: SeSystemEnvironmentPrivilege.
Disabled unneeded token privilege: SeSystemProfilePrivilege.
Disabled unneeded token privilege: SeSystemtimePrivilege.
Disabled unneeded token privilege: SeTakeOwnershipPrivilege.
Could not disable token privilege value: SeTcbPrivilege. (1300)
Disabled unneeded token privilege: SeTimeZonePrivilege.
Could not disable token privilege value: SeTrustedCredManAccessPrivilege. (1300)
Disabled unneeded token privilege: SeUndockPrivilege.
Could not disable token privilege value: SeUnsolicitedInputPrivilege. (1313)
SOURCE DIRECTORY C:\Users\Owner\AppData\Local\Mozilla\updates\E7CF176E110C211B\updates\0
DESTINATION DIRECTORY C:\Program Files (x86)\Mozilla Firefox
NS_main: callback app open attempt 1 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 2 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 3 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 4 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 5 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 6 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 7 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 8 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 9 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: callback app open attempt 10 failed. File: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Last error: 32
NS_main: file in use - failed to exclusively open executable file: C:\Program Files (x86)\Mozilla Firefox\firefox.exe
***** Log End ****************************************************************************
</nowiki></pre>
When I look up the version am running from Help about is shows 27.0.1.
I tried checking for updates again and got the message that firefox is up to date.
How do I fix this?
I don't know where to get FF 27 download again.
Where do I get the download?
Do I need to uninstall and re-install or just reinstall over the existing copy.
(reminder I can't lose my bookmarks and don't know how to back them up)
I know little about Win8 so I dont know where things belong.
Please reply to [email address removed]. and let me know where to find my answer
Thanks AlfLinus

Answer 1

''Alf wrote:''
When I look up the version am running from Help about is shows 27.0.1.
That's the version you seem to be running, which is the latest. Although there doesn't seem to be a need for it, you can download the full 27.0.1 setup file, exit Firefox, then install on top of your current version.
* http://www.mozilla.org/firefox/all/
If you run into the same problem, then I suggest disabling your security software before running the setup file and re-enabling it afterwards.
''Alf wrote:''
I need to keep all bookmarks - I don't have a back up or how to make them.
Updating Firefox doesn't normally affect your bookmarks. To back them up, you can export them in HTML format as described below.
* [[Export Firefox bookmarks to an HTML file to back up or transfer bookmarks]]
Email address removed by moderator
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