I am not seeing placeholders for missing or corrupt images. Is there an option to turn these on or off, or does Firefox not display these by default?

I am a web designer. I use FF as my default browser for everything--including work. When viewing pages containing broken image links or corrupted images, no placeholders show to indicate the problem.
I have to use another browser to check my work. Placeholders are such basic elements that they should appear without having to switch browsers or search for options.
Thinking I may have accidentally unset an option for viewing image placeholders, I have looked everywhere in the options (including Web Dev tools) and have searched support. I have found absolutely nothing to solve my issue.
Firefox--whatever version I had installed prior to a computer reformat and browser reinstall--was doing the same, so please don't suggest a FF reinstall or reset as a possible solution.

In order to change your Firefox Configuration please do the following steps :
# In the [[Location bar autocomplete|Location bar]], type '''about:config''' and press '''Enter'''. The about:config "''This might void your warranty!''" warning page may appear.
# Click '''I'll be careful, I promise!''' to continue to the about:config page.
#Search for browser.display.show_image_placeholders and make sure it is set to true.
That was a configuration that was from a very early on version of Firefox, so if this does not make a change there is more:
What is interesting is that there is also a css that allows the styling of the broken images: [https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-force-broken-image-icon]
This was an inter sting hack for the personal profile in Firefox : [http://megashare.altervista.org/blog/2012/08/enable-broken-image-placeholders-in-firefox/]
Please post back with your results, thank you!

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Datafile not restored due to missing or corrupt data

Hi all,
I was asked to restore a RMAN backup which we got from another region, the rman backup contains controlfiles and datafiles as compressed backupset.
oracle version is 10.2.0.3.0
aix version 6
First, I have restored the control file using the below command:
run
+{+
allocate channel t1 type disk;
restore controlfile from '/oracle/app/prod/rman/cf_t799873684_s17_p1';
alter database mount;
+}+
Second, I have cataloged the backup piece:
catalog backuppiece '/oracle/app/prod/rman/df_t794754324_s12_p1';
catalog backuppiece '/oracle/app/prod/rman/df_t793567544_s13_p1';
catalog backuppiece '/oracle/app/prod/rman/df_t731097654_s14_p1';
catalog backuppiece '/oracle/app/prod/rman/df_t792538698_s15_p1';
catalog backuppiece '/oracle/app/prod/rman/df_t792183472_s16_p1';
catalog backuppiece '/oracle/app/prod/rman/cf_t799873684_s17_p1';
Third, used below command to restore:
+run {+
allocate channel t1 type disk;
allocate channel t2 type disk;
allocate channel t3 type disk;
allocate channel t4 type disk;
set newname for datafile 01 to '/oracle/app/oradata/dbprod/system01.dbf';
set newname for datafile 02 to '/oracle/app/oradata/dbprod/undotbs01.dbf';
set newname for datafile 03 to '/oracle/app/oradata/dbprod/sysaux01.dbf';
set newname for datafile 04 to '/oracle/app/oradata/dbprod/users01.dbf';
set newname for datafile 06 to '/oracle/app/oradata/dbprod/datafile005.dbf';
set newname for datafile 07 to '/oracle/app/oradata/dbprod/datafile006.dbf';
set newname for datafile 08 to '/oracle/app/oradata/dbprod/datafile007.dbf';
set newname for datafile 09 to '/oracle/app/oradata/dbprod/datafile008.dbf';
set newname for datafile 10 to '/oracle/app/oradata/dbprod/datafile009.dbf';
set newname for datafile 11 to '/oracle/app/oradata/dbprod/datafile010.dbf';
set newname for datafile 14 to '/oracle/app/oradata/dbprod/datafile001.dbf';
set newname for datafile 15 to '/oracle/app/oradata/dbprod/datafile002.dbf';
set newname for datafile 16 to '/oracle/app/oradata/dbprod/datafile003.dbf';
set newname for datafile 17 to '/oracle/app/oradata/dbprod/datafile004.dbf';
set newname for datafile 18 to '/oracle/app/oradata/dbprod/indfile001.dbf';
set newname for datafile 19 to '/oracle/app/oradata/dbprod/indfile002.dbf';
set newname for datafile 20 to '/oracle/app/oradata/dbprod/indfile011.dbf';
restore database;
switch datafile all;
recover database;
+}+
But while restoring, I got error like below:
Starting restore at 22-OCT-12
channel t1: starting datafile backupset restore
channel t1: specifying datafile(s) to restore from backup set
restoring datafile 00004 to /glotam3/oracle10g/oradata/T24DEV3/users01.dbf
restoring datafile 00007 to /glotam3/oracle10g/oradata/T24DEV3/datafile006.dbf
restoring datafile 00011 to /glotam3/oracle10g/oradata/T24DEV3/datafile010.dbf
restoring datafile 00012 to /glotam3/oracle10g/oradata/T24DEV3/recop01.dbf
restoring datafile 00014 to /glotam3/oracle10g/oradata/T24DEV3/datafile001.dbf
channel t1: reading from backup piece /oracle/app/prod/rman/df_t793567544_s13_p1
channel t2: starting datafile backupset restore
channel t2: specifying datafile(s) to restore from backup set
restoring datafile 00001 to /oracle/app/oradata/dbprod/system01.dbf
restoring datafile 00003 to /oracle/app/oradata/dbprod/sysaux01.dbf
restoring datafile 00008 to /oracle/app/oradata/dbprod/datafile007.dbf
restoring datafile 00015 to /oracle/app/oradata/dbprod/datafile002.dbf
restoring datafile 00018 to /oracle/app/oradata/dbprod/indfile001.dbf
channel t2: reading from backup piece /oracle/app/prod/rman/df_t792538698_s15_p1
channel t3: starting datafile backupset restore
channel t3: specifying datafile(s) to restore from backup set
restoring datafile 00002 to /oracle/app/oradata/dbprod/undotbs01.dbf
restoring datafile 00009 to /oracle/app/oradata/dbprod/datafile008.dbf
restoring datafile 00013 to /oracle/app/oradata/dbprod/prefstat01.dbf
restoring datafile 00016 to /oracle/app/oradata/dbprod/datafile003.dbf
restoring datafile 00019 to /oracle/app/oradata/dbprod/indfile002.dbf
channel t3: reading from backup piece /oracle/app/prod/rman/df_t731097654_s14_p1
channel t4: starting datafile backupset restore
channel t4: specifying datafile(s) to restore from backup set
restoring datafile 00006 to /oracle/app/oradata/dbprod/datafile005.dbf
restoring datafile 00010 to /oracle/app/oradata/dbprod/datafile009.dbf
restoring datafile 00017 to /oracle/app/oradata/dbprod/datafile004.dbf
restoring datafile 00020 to /oracle/app/oradata/dbprod/indfile011.dbf
channel t4: reading from backup piece /oracle/app/prod/rman/df_t794754324_s12_p1
ORA-19870: error reading backup piece /oracle/app/prod/rman/
df_t793567544_s13_p1
ORA-19612: datafile 11 not restored due to missing or corrupt data
channel t3: restored backup piece 1
failover to piece handle=/oracle/app/prod/rman/
df_t731097654_s14_p1 tag=TAG20120822T184703
channel t3: restore complete, elapsed time: 01:06:05
channel t2: restored backup piece 1
failover to piece handle=/oracle/app/prod/rman/
df_t792538698_s15_p1 tag=TAG20120822T184703
channel t2: restore complete, elapsed time: 01:09:10
ORA-19870: error reading backup piece /oracle/app/prod/rman/
df_t794754324_s12_p1
ORA-19612: datafile 20 not restored due to missing or corrupt data
failover to previous backup
released channel: t1
released channel: t2
released channel: t3
released channel: t4
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 10/22/2012 15:11:23
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 20 found to restore
RMAN-06023: no backup or copy of datafile 17 found to restore
RMAN-06023: no backup or copy of datafile 10 found to restore
RMAN-06023: no backup or copy of datafile 6 found to restore
RMAN>
This same rman backup has been restored in other server, the commands were same but the db was not restored in my server.
Kindly help me....
Thanks in advance,
nonuday

Hi mseberg,
When I executed the below command with same date. This is what is got and am not able to understand what it says.
RMAN> run
+{+
SET UNTIL TIME "TO_DATE('10/22/2012','MM/DD/YYYY')";
restore database preview;
+}2> 3> 4> 5>+
executing command: SET until clause
Starting restore at 23-OCT-12
using channel ORA_DISK_1
List of Backup Sets
+===================+
BS Key Type LV Size       Device Type Elapsed Time Completion Time
+8 Full 11.68G DISK 02:10:15 22-AUG-12+
BP Key: 18   Status: AVAILABLE Compressed: YES Tag: TAG20120822T184703
Piece Name: /oracle/app/prod/rman/df_t793567544_s13_p1
List of Datafiles in backup set 8
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+4 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/users01.dbf+
+7 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile006.dbf+
+11 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile010.dbf+
+12 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/recop01.dbf+
+14 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile001.dbf+
BS Key Type LV Size       Device Type Elapsed Time Completion Time
+10 Full 11.35G DISK 02:15:49 22-AUG-12+
BP Key: 16   Status: AVAILABLE Compressed: YES Tag: TAG20120822T184703
Piece Name: /oracle/app/prod/rman/df_t792538698_s15_p1
List of Datafiles in backup set 10
File LV Type Ckp SCN    Ckp Time Name
+1 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/system01.dbf+
+3 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/sysaux01.dbf+
+8 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile007.dbf+
+15 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile002.dbf+
+18 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/indfile001.dbf+
BS Key Type LV Size       Device Type Elapsed Time Completion Time
+11 Full 10.78G DISK 02:20:07 22-AUG-12+
BP Key: 15   Status: AVAILABLE Compressed: YES Tag: TAG20120822T184703
Piece Name: /oracle/app/prod/rman/df_t731097654_s14_p1
List of Datafiles in backup set 11
File LV Type Ckp SCN    Ckp Time Name
+2 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/undotbs01.dbf+
+9 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile008.dbf+
+13 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/prefstat01.dbf+
+16 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile003.dbf+
+19 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/indfile002.dbf+
BS Key Type LV Size       Device Type Elapsed Time Completion Time
+12 Full 16.83G DISK 03:25:43 22-AUG-12+
BP Key: 14   Status: AVAILABLE Compressed: YES Tag: TAG20120822T184703
Piece Name: /oracle/app/prod/rman/df_t794754324_s12_p1
List of Datafiles in backup set 12
File LV Type Ckp SCN    Ckp Time Name
+6 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile005.dbf+
+10 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile009.dbf+
+17 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile004.dbf+
+20 Full 30013719101 16-AUG-12 /u01/oradata/dbproddata/datafile011.dbf+
archive logs generated after SCN 30013719101 not found in repository
Media recovery start SCN is 30013719101
Recovery must be done beyond SCN 30013719101 to clear data files fuzziness
Finished restore at 23-OCT-12
RMAN>
Thanks for reply,
Nonuday

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