I have never used Firefox, but I can give you two methods, taking Vista and win7 systems as examples, for your reference only.

Please first confirm whether the following settings are enabled: Change the settings in Tools----Internet Options------Security------Custom Level------ActiveX Controls and Plug-ins" to "Enabled"

" or "Prompt". Method 1: Find Firefox in the start menu, right-click and select "Run as administrator". Method 2: Open the browser---Tools--Internet Options--

--Security---Trust Site---Site----Add the Bank of Communications website (), close the browser, and then reopen it.