Add and fix somthings

[tilfin]

• Fix not to error when open option page on Chrome
• Add Donation link to popup

[codecov-io]

Codecov Report

Merging #60 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #60   +/-   ##
======================================
  Coverage    88.4%   88.4%           
======================================
  Files           9       9           
  Lines         276     276           
======================================
  Hits          244     244           
  Misses         32      32

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