To clear your cache in Internet Explorer:

1. Close all other open browser windows.
2. Click the ‘Tools’ menu at the top of your browser, and select ‘Internet Options.’
3. Click the ‘General’ tab at the top of the dialogue box.
4. Click ‘Delete Files’ under ‘Temporary Internet files.’
5. Select ‘Delete all offline content’ by checking the box.
6. Click ‘OK.’

To clear your cache in Mozilla Firefox:

1. Close all other open browser windows.
2. Click the ‘Tools’ menu at the top of your browser, and select ‘Options.’
3. Click ‘Privacy.’
4. Click ‘Clear’ next to ‘Cache.’
5. Click ‘OK.’

To clear your cache in Mozilla and Netscape:

1. Close all other open browser windows.
2. Click the ‘Edit’ menu at the top of your browser, and select ‘Preferences.’
3. Click the ‘+’ next to ‘Advanced.’
4. Select ‘Cache’ under ‘Advanced.’
5. Click ‘Clear Cache.’
6. Click ‘OK.’

To clear your cache under Opera:

To clear your cache in Safari:

1. Close all other open browser windows.
2. Open the ‘Safari’ menu on your browser’s toolbar.
3. Select ‘Empty Cache.’
4. Click ‘Empty’ in the dialogue box.

In some cases, it may be necessary to clear your cache more than once.

The Thunderbird add-on Thunderbird Message Filter Import/Export makes it easy to export mail filters from one account or computer and import those mail filters to another computer or mail account easily. This ensures that all mail accounts work with the same filters which gets rid of the learning process.

The add-on adds an Export Filters button to the Tools > Message Filters window. Just select the account that you want to export filters from and click on the Export Filters button. Filters are imported in the Tools > Import filters menu.

[via gHacks]