Find / Replace searches post content and excerpts for text you specify, swaps it (case-insensitive), and saves the posts you select. Before anything is written, the plugin snapshots the old values so Big Fat Rewind can undo the run.
Replacement is plain string substitution inside each field. A find string that appears inside HTML tags or attributes can break markup. Use preview when it is offered, and keep search strings specific.
For each selected post, the plugin counts case-insensitive matches in post_content and post_excerpt separately. Only fields that actually change get updated. Every match in that field is replaced in one pass.
Before writing, prior content and excerpt values go into the backup pipeline (frbackup table plus a JSON option). Big Fat Rewind restores from that snapshot. If backup data is missing or corrupt, rewind cannot help — keep normal database backups for large jobs.
Page caches and CDNs may still show old HTML until they expire or you purge them.
Advanced mode supports CSV import: upload a file, preview columns, then process rows in batches. Progress lands in the frprocess table. The same backup and rewind rules apply — rewind before starting a second import that would clash with the first.
Upgrading from SEO Bulk Admin Pro? Use AccAdmin → SEOBA migration to copy redirect and find/replace table rows (frprocess, frbackup) into the current plugin tables.