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How to clear or disable recently closed tab section in Firefox

June 15, 2010 By Ravi Shankar 3 Comments

Firefox displays the recently closed tabs under History menu –> Recently Closed Tabs.

image

If you want to clear or disable the recently closed tabs section then you can do the following

  • In the Firefox address bar type about:config
  • If you get the below warning message then click on the I’ll be careful, I promise button

image

  • Type browser.sessionstore.max_tabs_undo in Filter text box

image

  • Set the value for browser.sessionstore.max_tabs_undo to 0 and click OK to confirm the changes

image

Now if you navigate to History menu –> Recently Closed tabs section will be disabled as shown below.

image

Filed Under: Firefox, Technical Tagged With: Clear, Closed Tabs, Disable, Firefox, Recently

How to turn on/off pop ups in Internet Explorer 8

July 8, 2009 By Ravi Shankar 2 Comments

Internet Explorer 8 has settings for blocking pop ups that appearing while accessing a website. Using this setting you can turn on or off a pop up, specify the sites where you want allow pop up to appear. To access Pop-up Blocker, click on Tools menu -> Options -> select Privacy tab in Internet Options dialog box.

popup blocker in Internet Explorer 8

On checking/un checking the Turn on Pop-up Blocker you enable or disable Pop ups. And on clicking settings button the following dialog would be displayed

image

Using IE8 Pop-up Blocker settings you can specify the listed of sites that can be allowed Pop-ups and also provides options for changing the Notifications and blocking level.

Filed Under: Internet Explorer, Technical Tagged With: IE8, Tips

How to find/kill the locked objects in an oracle database

March 5, 2008 By Ravi Shankar Leave a Comment

The below query can be used for determining the if any object locked in an oracle database.

select   c.owner,  c.object_name,  c.object_type,  b.sid,  b.serial#,
   b.status, b.osuser, b.machine
from
   v$locked_object a , v$session b, dba_objects c
where
   b.sid = a.session_id
and a.object_id = c.object_id;

And if you need to kill any session you can use the below query to do the same.

alter system kill session sid,serial;

Filed Under: Technical

How to find out maximum open cursors and no of cursors open in Oracle

March 4, 2008 By Ravi Shankar Leave a Comment

The maximum number of open cursors in an oracle database can be determined by the following query

select name, value
from v$parameter
where name like ‘open-cursors’

the value for open_cursors parameter refers to maximum number of open cursors allowed.

The below query can be used to determine number of open cursors for the current session.

SELECT
sid,user_name, COUNT(*) "Cursors per session"
FROM v$open_cursor
GROUP BY sid,user_name

Filed Under: Technical

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