We are using apexlib version 1.6upd whenever an error is raised in firefox the error does not appear in the current page but in the next page you visit. The error is successfully shown in Chrome and IE. Could you please explain whether there is a work around for this, or would upgrading to version 2.0 correct this?
Firefox not showing this error has to do with its unique Page caching Algorithm (BFCACHE).
See https://developer.mozilla.org/En/Using_Firefox_1.5_caching for explanations of BFCACHE
Thanks for this but it seems to be okay since I have udated to apexlib version 2.0.