Boolean Search String Builder Pro (Firefox)

Boolean Search String Builder Pro is a Firefox add-on for writing Boolean searches for LinkedIn and Google: recruiters sourcing candidates, or anyone searching for jobs. It does everything the free builder does, plus a saved-search library, job-title synonym packs and export/import.

•  Save searches by name in a library kept in your browser (up to 200), then load or delete each one in one click.
•  14 job-title synonym packs, such as software engineer, data analyst, nurse and recruiter, fill a term group in one click.
•  Export saved searches to a JSON file and import them on another computer; a damaged file is refused as a whole.
•  Everything the free builder does: OR groups, AND or space between groups, NOT or -term exclusions, quoted phrases and one-click copy.
•  No data collected and no site access: the only permissions are clipboard write and browser storage.

Requirements: Firefox 140 or later. Pro works on its own, so you don't need the free add-on as well.

Installation: download the .xpi file and open it in Firefox. You can drag it onto a Firefox window, or go to Add-ons and themes → gear icon → Install Add-on From File. Then click Add.

 This add-on is installed from a file, so Firefox won't update it automatically.